Comic-Con is one of the rare moments when Hollywood's shiniest, glammest stars rub elbows with the nerdiest of the nerds (we mean that in the nicest way). While eager fans descend on San Diego dressed up as superheroes, villains, anime characters and Star Trek icons, celebs get the chance to dress down, chill out and even wear see-through, cut-off tees if their hearts so desire (K-Stew, we're sure the fanboys were appreciative).

But Michelle Williams must have missed the memo. Williams hit up Comic-Con on Thursday to promote "Oz: the Great and Powerful," her new movie with Mila Kunis, James Franco and Rachel Weisz. For her panel, where she was joined by Kunis and director Sam Raimi, Williams chose a delicate shift dress by Giulietta dress and bright, sexy Giuseppe Zanotti shoes.

Paired with her signature pixie cut, Michelle's outfit looked lovely... for a daytime movie premiere, or perhaps an especially fancy brunch. But for the geek-tastic convention, full of fluorescent lights and superhero insignia, something seemed a bit off. It didn't help that Michelle had to pose in front of a busy white and black backdrop covered in Comic-Con logos -- between that and her white and black printed dress, we felt like we were playing "Where's Waldo: Hollywood Starlet Edition."

It was the purple shoes that finally gave her hiding spot away.

What do you think of Michelle's look -- is it too formal for Comic-Con?

PHOTOS:

michelle williams comiccon

michelle williams comiccon

See the wacky costumes people are wearing to Comic-Con...

Loading Slideshow...
  • Saban's Power Rangers POWER Up San Diego Comic-Con - Day 1

    SAN DIEGO, CA - JULY 12: Saban's Power Rangers POWER Up Comic-Con Day 1 at San Diego Convention Center on July 12, 2012 in San Diego, California. (Photo by Chelsea Lauren/Getty Images for Saban Brands)

  • Saban's Power Rangers POWER Up San Diego Comic-Con - Day 1

    SAN DIEGO, CA - JULY 12: Saban's Power Rangers POWER Up Comic-Con Day 1 at San Diego Convention Center on July 12, 2012 in San Diego, California. (Photo by Chelsea Lauren/Getty Images for Saban Brands)

  • Fans walk to preview night at Comic-Con held at the San Diego Convention Center on Wednesday July 11, 2012, in San Diego. (Photo by Denis Poroy/Invision/AP)

  • Fans arrive at the San Diego Convention Center before preview night at Comic - Con on Wednesday July 11, 2012, in San Diego. (Photo by Denis Poroy/Invision/AP)

  • Fans arrive at the San Diego Convention Center before preview night at Comic - Con on Wednesday July 11, 2012, in San Diego. (Photo by Denis Poroy/Invision/AP)

  • Fans arrive at the San Diego Convention Center before preview night at Comic - Con on Wednesday July 11, 2012, in San Diego. (Photo by Denis Poroy/Invision/AP)

  • Fans arrive at the San Diego Convention Center before preview night at Comic - Con on Wednesday July 11, 2012, in San Diego. (Photo by Denis Poroy/Invision/AP)

  • Fans arrive at the San Diego Convention Center before preview night at Comic - Con on Wednesday July 11, 2012, in San Diego. (Photo by Denis Poroy/Invision/AP)

  • Fans arrive at the San Diego Convention Center before preview night at Comic - Con on Wednesday July 11, 2012, in San Diego. (Photo by Denis Poroy/Invision/AP)

  • Brothers Devon, second from left, and Trevor McPhillips walk with their father Ryan McPhillips, right, as they arrive to Comic-Con Wednesday, July 11, 2012, in San Diego. The annual comic book and popular arts convention attracts over 100,000 people and runs through July 15. (AP Photo/Gregory Bull)

  • People wait at the entrance to Comic-Con Wednesday, July 11, 2012, in San Diego. The annual comic book and popular arts convention attracts over 100,000 people and runs through July 15. (AP Photo/Gregory Bull)

  • Ray Senore, right, poses with a man dressed as Spiderman at Comic-Con Wednesday, July 11, 2012, in San Diego. The annual comic book and popular arts convention attracts over 100,000 people and runs through July 15. (AP Photo/Gregory Bull)

  • A woman in make up looks on at the entrance to Comic-Con Wednesday, July 11, 2012, in San Diego. The annual comic book and popular arts convention attracts over 100,000 people and runs through July 15. (AP Photo/Gregory Bull)

  • Jordan Kruegar dresses as Batman as he arrives to Comic-Con Wednesday, July 11, 2012, in San Diego. The annual comic book and popular arts convention attracts over 100,000 people and runs through July 15. (AP Photo/Gregory Bull)

  • Jenny Harlow, left, applies makeup to Nick Bane as the wait to enter in Comic-Con Wednesday, July 11, 2012, in San Diego. The annual comic book and popular arts convention attracts over 100,000 people and runs through July 15. (AP Photo/Gregory Bull)

  • Nomad

    Nomad from Dive Bomber poses for photographers at the Comic-Con preview night held at the San Diego Convention Center on Wednesday July 11, 2012, in San Diego. (Photo by Denis Poroy/Invision/AP)

  • COMMERCIAL IMAGE - In this photograph taken by AP Images for General Mills, Comic enthusiasts David, Tzvi and Shira Simchon, left to right, of Brooklyn, NY, read autographed comics from DC Entertainment and General Mills at New York Comic Con, Sunday, Oct. 16, 2011, in New York. General Mills and DC Entertainment joined forces to help promote childhood reading through exclusive comics featured in specially marked boxes of Big G cereals. (Diane Bondareff / AP Images for General Mills)

  • Spiderman w/ the Bat-mobile

    <a href="http://www.huffingtonpost.com/social/Jesca_Cluff"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/100001182664797/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Jesca_Cluff">Jesca Cluff</a>:<br />Universes collide

  • Batman

    San Diego Comic-Con on July 11 (Denis Poroy/Invision/AP)

  • "Community" Stars Talk At Comic-Con 2011

  • Crazy body paint

    San Diego Comic-Con on July 11, 2012 (Denis Poroy/Invision/AP photo)

  • Poison Ivy

    San Diego Comic-Con on July 11 (Getty photo)

  • Russian Soldier

    San Diego Comic-Con on July 11 (Getty photo)

  • Princess Leia Slave Costume

    San Diego Comic-Con on July 11 (Getty photo)

  • Cat

    San Diego Comic-Con on July 11 (Getty photo)

  • Bat Girl

    San Diego Comic-Con on July 11 (Getty photo)

  • Sci-Fi Character

    San Diego Comic-Con on July 11 (Getty photo)

  • Harley Quinn

    San Diego Comic-Con on July 11 (Getty photo)

  • Hotel Transylvania

    San Diego Comic-Con on July 11 (Getty photo)

  • Female Joker

    San Diego Comic-Con on July 11 (Getty photo)

  • Guest

    San Diego Comic-Con on July 11 (Getty photo)

  • Sci-Fi Character

    San Diego Comic-Con on July 11 (Getty photo)

  • 3 Different Characters

    San Diego Comic-Con on July 11 (Getty photo)

  • 3 Different Comic Book Characters

    San Diego Comic-Con on July 11 (Getty photo)

  • Super Woman

    San Diego Comic-Con on July 11 (Getty photo)

  • Naruto Character

    San Diego Comic-Con on July 11 (Getty photo)

  • Repo: The Genetic Opera Characters

    San Diego Comic-Con on July 11 (Getty photo)

  • Safari Man

    San Diego Comic-Con on July 11 (Getty photo)

  • Cosplay Man

    San Diego Comic-Con on July 11 (Getty photo)

  • Diary Of A Wimpy Kid

    San Diego Comic-Con on July 11 (Getty photo)

  • Cosplay Man

    San Diego Comic-Con on July 11 (Getty photo)

  • Star Wars Yoda

    San Diego Comic-Con on July 11 (Getty photo)

  • Cosplay Girl

    San Diego Comic-Con on July 11 (Getty photo)

  • Lucha Libre

    San Diego Comic-Con on July 11 (Getty photo)

  • Anakin Skywalker

    San Diego Comic-Con on July 11 (Getty photo)

  • Hotel Transylvania

    San Diego Comic-Con on July 11 (Getty photo)

  • "Branded" Street Team

    San Diego Comic-Con on July 13 (Getty photo)

  • Large Costume

    San Diego Comic-Con on July 12 (Getty photo)

  • "Hotel Transylvania"

    San Diego Comic-Con on July 12 (Getty photo)

  • Movies On Demand Bloggers Lounge

    San Diego Comic-Con on July 12 (Getty photo)

  • Adrianne Curry at "The Expendable 2" Party

    San Diego Comic-Con on July 12 (Getty photo)

Want more? Be sure to check out HuffPost Style on Twitter, Facebook, Tumblr and Pinterest.