LONDON -- LONDON (AP) — Natalie Portman says hitting Chris Hemsworth was "one small slap for womankind."

The actress, who reprises her role as Jane Foster in "Thor: The Dark World," gives the superhero a smack in the Marvel sequel.

"Thor: The Dark World" has its world premiere in London Tuesday and is out in U.S. cinemas Nov. 8.

At a promotional event on Saturday, Portman said that she channeled all her single girlfriends: "You hear all these stories about guys and it's just good to get a nice on-screen slap like 'you didn't call me back.'"

The intention may have been payback but, according to Hemsworth, the result was less so.

"It just got really funny and ridiculous you know. It's like in high school when you're not meant to laugh," he said.

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  • Scarlett Johansson

    Scarlett Johansson attends the "Captain America:The Winter Soldier" press line on Day 4 of Comic-Con International on Saturday, July 20, 2013 in San Diego. (Photo by Chris Pizzello/Invision/AP)

  • Scarlett Johansson

    Scarlett Johansson attends the "Captain America:The Winter Soldier" press line on Day 4 of Comic-Con International on Saturday, July 20, 2013 in San Diego. (Photo by Chris Pizzello/Invision/AP)

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    SAN DIEGO, CA - JULY 20: Actors Karen Gillan (L) and Michael Rooker speak onstage at Marvel Studios 'Guardians of the Galaxy' during Comic-Con International 2013 at San Diego Convention Center on July 20, 2013 in San Diego, California. (Photo by Kevin Winter/Getty Images)

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    SAN DIEGO, CA - JULY 20: The cast and crew of 'Captain America: The Winter Soldier' speaks onstage during Comic-Con International 2013 at San Diego Convention Center on July 20, 2013 in San Diego, California. (Photo by Kevin Winter/Getty Images)

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    SAN DIEGO, CA - JULY 20: Director Joss Whedon speaks onstage at Marvel Studios 'Thor: The Dark World' and 'Captain America: The Winter Soldier' during Comic-Con International 2013 at San Diego Convention Center on July 20, 2013 in San Diego, California. (Photo by Kevin Winter/Getty Images)

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    SAN DIEGO, CA - JULY 20: Actress Scarlett Johansson speaks onstage at Marvel Studios 'Thor: The Dark World' and 'Captain America: The Winter Soldier' during Comic-Con International 2013 at San Diego Convention Center on July 20, 2013 in San Diego, California. (Photo by Kevin Winter/Getty Images)

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    SAN DIEGO, CA - JULY 20: (L-R) Actors Hugh Jackman, Patrick Stewart and Ian McKellen speak at the 20th Century Fox panel during Comic-Con International 2013 at San Diego Convention Center on July 20, 2013 in San Diego, California. (Photo by Kevin Winter/Getty Images)

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    SAN DIEGO, CA - JULY 20: Actors Patrick Stewart (L) and Ian McKellen speak at the 20th Century Fox panel during Comic-Con International 2013 at San Diego Convention Center on July 20, 2013 in San Diego, California. (Photo by Kevin Winter/Getty Images)

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    SAN DIEGO, CA - JULY 20: Actresses Halle Berry (L) and Anna Paquin speak at the 20th Century Fox panel during Comic-Con International 2013 at San Diego Convention Center on July 20, 2013 in San Diego, California. (Photo by Kevin Winter/Getty Images)

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    SAN DIEGO, CA - JULY 20: Actresses Halle Berry (L) and Anna Paquin speak at the 20th Century Fox panel during Comic-Con International 2013 at San Diego Convention Center on July 20, 2013 in San Diego, California. (Photo by Kevin Winter/Getty Images)

  • 20th Century Fox Panel - Comic-Con International 2013

    SAN DIEGO, CA - JULY 20: (L-R) Actors Hugh Jackman, Patrick Stewart and Ian McKellen speak at the 20th Century Fox 'X-Men: Days of Future Past' panel during Comic-Con International 2013 at San Diego Convention Center on July 20, 2013 in San Diego, California. (Photo by Kevin Winter/Getty Images)

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    SAN DIEGO, CA - JULY 20: Actors Michael Fassbender (L) and James McAvoy speak at the 20th Century Fox panel during Comic-Con International 2013 at San Diego Convention Center on July 20, 2013 in San Diego, California. (Photo by Kevin Winter/Getty Images)

  • 20th Century Fox Panel - Comic-Con International 2013

    SAN DIEGO, CA - JULY 20: Actresses Halle Berry (L) and Anna Paquin speak at the 20th Century Fox panel during Comic-Con International 2013 at San Diego Convention Center on July 20, 2013 in San Diego, California. (Photo by Kevin Winter/Getty Images)

  • 20th Century Fox Panel - Comic-Con International 2013

    SAN DIEGO, CA - JULY 20: Actors Michael Fassbender (L) and James McAvoy speak at the 20th Century Fox panel during Comic-Con International 2013 at San Diego Convention Center on July 20, 2013 in San Diego, California. (Photo by Kevin Winter/Getty Images)

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    SAN DIEGO, CA - JULY 20: Actors Michael Fassbender (L) and James McAvoy speak at the 20th Century Fox panel during Comic-Con International 2013 at San Diego Convention Center on July 20, 2013 in San Diego, California. (Photo by Kevin Winter/Getty Images)

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    SAN DIEGO, CA - JULY 20: The cast and crew of 'Captain America: The Winter Soldier' speaks onstage during Comic-Con International 2013 at San Diego Convention Center on July 20, 2013 in San Diego, California. (Photo by Kevin Winter/Getty Images)

  • 20th Century Fox Panel - Comic-Con International 2013

    SAN DIEGO, CA - JULY 20: Actors Michael Fassbender (L) and James McAvoy speak at the 20th Century Fox panel during Comic-Con International 2013 at San Diego Convention Center on July 20, 2013 in San Diego, California. (Photo by Kevin Winter/Getty Images)

  • 20th Century Fox Panel - Comic-Con International 2013

    SAN DIEGO, CA - JULY 20: Actors Michael Fassbender (L) and James McAvoy speak at the 20th Century Fox panel during Comic-Con International 2013 at San Diego Convention Center on July 20, 2013 in San Diego, California. (Photo by Kevin Winter/Getty Images)