Jessica Chastain Drops Out of Iron Man 3

Jessica Chastain attends the "Schiaparelli And Prada: Impossible Conversations" Costume Institute Gala at the Metropolitan Museum of Art on May 7, 2012 in New York City. Credit: Dimitrios Kambouris/Getty Images

Jessica Chastain's loss is another actress' gain!

The Oscar-nominated star, 31, has bowed out of Iron Man 3, Chastain announced on Facebook Sunday. She was slated to play a "sexy scientist" who lusts for Robert Downey Jr.'s character.

"Sorry to say that Iron Man 3 isn't going to work out. My schedule is jam-packed and I can't fit anything else in. The press announced my possible attachment far too soon," Chastain explained. "I know many of you wanted me to be involved, and I'm so sorry to disappoint you. Hopefully there'll be another Marvel film in my future. Shane Black and everyone on the Iron Man 3 team are really wonderful. I'm very excited to see the film when it comes out."

Veteran Iron Man stars Downey, 47, and Gwyneth Paltrow, 39, recently reprised their roles in The Avengers, which generated a record-breaking $200.3 million in its opening weekend.

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