When "Silver Linings Playbook" star Jennifer Lawrence was accepting Outstanding Female Actor in a Leading Role at the 2013 SAG Awards on Sunday night, she remembered her first role: a television commercial for "My Super Sweet 16."

"I want to thank MTV," Lawrence said. "I'll explain that. I earned my SAG card when I was 14. I did an MTV promo for 'My Super Sweet 16.' And I remember getting it in the mail and it being the best day of my entire life, because it officially made me a professional actor, which put me in the category with all of you."

Lawrence was nominated in the category alongside Jessica Chastain, Marion Cotillard, Naomi Watts and Helen Mirren; she's the favorite to win Best Actress at the 85th annual Academy Awards on Feb. 24.

Watch Lawrence's lost MTV promos above. Check out her full SAG Awards acceptance speech by clicking here.

For a full SAG Awards report, check out HuffPost Entertainment's SAG coverage.

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  • Ben Affleck

    Ben Affleck, center, and the cast of argo accept the award for outstanding cast in a motion picture for “Argo” at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by John Shearer/Invision/AP)

  • Modern Family

    The cast of "Modern Family" poses backstage with the award for ensemble in a comedy series at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by Chris Pizzello/Invision/AP)

  • Amy Poehler, Neil Patrick Harris

    Amy Poehler, right, and Neil Patrick Harris present the award for outstanding male actor in a drama series at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by John Shearer/Invision/AP)

  • Jared Harris, Daniel Day-Lewis

    Jared Harris, left, and Daniel Day-Lewis pose in the audience at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by John Shearer/Invision/AP)

  • Julianne Moore

    Julianne Moore smiles backstage with the award for outstanding female actor in a TV movie or miniseries for “Game Change” at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by Matt Sayles/Invision/AP)

  • Bryan Cranston

    Bryan Cranston accepts the award for outstanding male actor in a drama series for “Breaking Bad” at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by John Shearer/Invision/AP)

  • Dick Van Dyke

    Dick Van Dyke poses backstage with the Screen Actors Guild Life Achievement Award at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by Matt Sayles/Invision/AP)

  • Jessica Chastain

    Jessica Chastain speaks onstage at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by John Shearer/Invision/AP)

  • Anne Hathaway

    Actress Anne Hathaway poses backstage with the award for best female actor in a supporting role for “Les Miserables” at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday, Jan. 27, 2013. (Photo by Chris Pizzello/Invision/AP)

  • Lea Michele, Cory Monteith

    Lea Michele, left, and Cory Monteith arrives at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by Chris Pizzello/Invision/AP)

  • Justin Timberlake, James Marsden

    Justin Timberlake, left, and James Marsden arrive at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by Jordan Strauss/Invision/AP)

  • Sacha Baron Cohen, left, and Daniel Day

    Sacha Baron Cohen, left, and Daniel Day Lewis appear in the audience at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by John Shearer/Invision/AP)

  • John Krasinski

    John Krasinski arrives at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by Jordan Strauss/Invision/AP)

  • Sacha Baron Cohen, Hugh Jackman

    Sacha Baron Cohen, right, and Hugh Jackman pose for a photo in the audience at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by John Shearer/Invision/AP)

  • Damian Lewis, Aaron Paul

    Damian Lewis, left, and Aaron Paul talk together in the audience at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by John Shearer/Invision/AP)

  • Jennifer Lawrence

    Jennifer Lawrence reacts as she is announced the winner of the award for outstanding female actor in a leading role for “Silver Linings Playbook” at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by John Shearer/Invision/AP)

  • Jennifer Lawrence, Robert De Niro

    Jennifer Lawrence, left, and Robert De Niro kiss as she accepts the award for outstanding female actor in a leading role for “Silver Linings Playbook” at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by John Shearer/Invision/AP)

  • Jennifer Lawrence, Robert De Niro

    Robert De Niro watches as Jennifer Lawrence accepts the award for outstanding female actor in a leading role for “Silver Linings Playbook” at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by John Shearer/Invision/AP)

  • Daniel Day-Lewis

    Daniel Day-Lewis accepts the awards for outstanding male actor in a leading role for “Lincoln” at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by John Shearer/Invision/AP)

  • Jessica Chastain, Jesse Tyler Ferguson

    Jessica Chastain, left, and Jesse Tyler Ferguson pose in the audience at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by John Shearer/Invision/AP)

  • Jon Hamm; Jennifer Westfeldt

    Actors Jon Hamm, left, and Jennifer Westfeldt arrive at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by Jordan Strauss/Invision/AP)

  • Modern Family

    The cast of "Modern Family" poses backstage with the award for ensemble in a comedy series at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by Chris Pizzello/Invision/AP)

  • Alec Baldwin

    Alec Baldwin poses backstage with the award for outstanding male actor in a comedy series for “30 Rock” at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by Matt Sayles/Invision/AP)

  • Naomi Watts, Harvey Weinstein

    Naomi Watts, left, and Harvey Weinstein pose in the audience at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by John Shearer/Invision/AP)

  • Isla Fisher, Russell Crowe

    Isla Fisher, left, and Russell Crowe pose in the audience at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by John Shearer/Invision/AP)

  • Tina Fey, James Marsden

    Tina Fey, left, and James Marsden pose in the audience at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by John Shearer/Invision/AP)

  • Amanda Seyfried, Isla Fisher

    Amanda Seyfried, left, and Isla Fisher pose in the audience at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by John Shearer/Invision/AP)

  • Ben Affleck

    Ben Affleck accepts the award for outstanding cast in a motion picture for “Argo” at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by John Shearer/Invision/AP)

  • Anne Hathaway, Adam Shulman

    Anne Hathaway, center, and Adam Shulman, right, stand in the audience at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by John Shearer/Invision/AP)

  • Daniel Day-Lewis

    Actor Daniel Day-Lewis poses backstage with the award for best male actor in a leading role at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by Chris Pizzello/Invision/AP)

  • Phyllis Logan; Michelle Dockery; Allen Leech: Amy Nuttall; Sophie McShera

    Actors, from left, Phyllis Logan, Michelle Dockery, Allen Leech, Amy Nuttall and Sophie McShera pose backstage with the award for best ensemble in a drama series for “Downton Abbey” at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by Chris Pizzello/Invision/AP)

  • Claire Danes

    Actress Claire Danes poses backstage with the award for best female actor in a drama series at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by Chris Pizzello/Invision/AP)

  • Argo

    The cast of "Argo" poses backstage with the award for best cast in a motion picture at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by Chris Pizzello/Invision/AP)

  • Daniel Day-Lewis

    Actor Daniel Day-Lewis poses backstage with the award for best male actor in a leading role at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by Chris Pizzello/Invision/AP)

  • Ben Affleck

    Actor Ben Affleck poses backstage with the award for best cast in a motion picture for "Argo" at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by Chris Pizzello/Invision/AP)

  • US-SCREEN ACTORS GUILD-TROPHY

    Actress Anne Hathaway, winner of Outstanding Performance by a Female Actor in a Supporting Role for 'Les Miserables,' poses in the press room during the 19th Annual Screen Actors Guild Awards held at The Shrine Auditorium on January 27, 2013 in Los Angeles, California. AFP PHOTO / Frederic J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)

  • US-SCREEN ACTORS GUILD-TROPHY

    Actress Anne Hathaway, winner of Outstanding Performance by a Female Actor in a Supporting Role for 'Les Miserables,' poses in the press room during the 19th Annual Screen Actors Guild Awards held at The Shrine Auditorium on January 27, 2013 in Los Angeles, California. AFP PHOTO / Frederic J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)

  • Jennifer Lawrence

    Jennifer Lawrence arrives at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by Jordan Strauss/Invision/AP)

  • Julia Stiles

    Julia Stiles arrives at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday, Jan. 27, 2013. (Photo by Jordan Strauss/Invision/AP)

  • Melanie Lynskey

    Actress Melanie Lynskey arrives at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday, Jan. 27, 2013. (Photo by Matt Sayles/Invision/AP)

  • Naya Rivera

    Naya Rivera arrives at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday, Jan. 27, 2013. (Photo by Chris Pizzello/Invision/AP)

  • Amy Poehler

    Amy Poehler arrives at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday, Jan. 27, 2013. (Photo by Jordan Strauss/Invision/AP)

  • Naya Rivera

    Naya Rivera arrives at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday, Jan. 27, 2013. (Photo by Chris Pizzello/Invision/AP)

  • Amanda Seyfried

    Amanda Seyfried arrives at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday, Jan. 27, 2013. (Photo by Matt Sayles/Invision/AP)

  • Neil Patrick Harris

    Neil Patrick Harris arrives at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday, Jan. 27, 2013. (Photo by Matt Sayles/Invision/AP)

  • Elisabeth Moss

    Actress Elisabeth Moss arrives at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday, Jan. 27, 2013. (Photo by Chris Pizzello/Invision/AP)

  • Neil Patrick Harris

    Neil Patrick Harris arrives at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday, Jan. 27, 2013. (Photo by Matt Sayles/Invision/AP)

  • Jennifer Lawrence

    Actress Jennifer Lawrence arrives at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday, Jan. 27, 2013. (Photo by Matt Sayles/Invision/AP)

  • Amy Poehler

    Amy Poehler arrives at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by Chris Pizzello/Invision/AP)

  • Matthew Morrison

    Actor Matthew Morrison, right, and guest arrive at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday, Jan. 27, 2013. (Photo by Jordan Strauss/Invision/AP)

  • Daniel Day Lewis

    Daniel Day Lewis arrives at the 19th Annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles on Sunday Jan. 27, 2013. (Photo by Chris Pizzello/Invision/AP)