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Actors Gwyneth Paltrow, left, and Robert Downey Jr. arrive at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Actors Sir Ben Kingsley, Gwyneth Paltrow, and Robert Downey Jr. arrive at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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From left, actors Stephanie Szostak, Ty Simpkins, James Badge Dale, Guy Pearce, Sir Ben Kingsley, Gwyneth Paltrow, Robert Downey Jr., Don Cheadle, Rebecca Hall, executive producer/actor Jon Favreau and actor William Sadler arrive at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
Kevin Winter/Getty Images
Actors Gwyneth Paltrow, left, and Robert Downey Jr. arrive at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
Kevin Winter/Getty Images
Actor Robert Downey Jr. arrives at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
Kevin Winter/Getty Images
Susan Downey, left, and actor Robert Downey Jr. arrive at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Actor Don Cheadle arrives at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Actress Gwyneth Paltrow arrives at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Actor Guy Pearce, right, and Kate Mestitz arrive at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Actors Ben Kingsley, right, and Daniela Lavender arrive at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Writer Stan Lee arrives at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Writer/director Joss Whedon arrives at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Actress Rebecca Hall arrives at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Actress Cobie Smulders arrives at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Robert Downey Jr., left, and wife Susan Downey arrive at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Executive producer/actor Jon Favreau arrives at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Actress Emily VanCamp arrives at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Actress Bella Thorne arrives at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Actor Zachary Levi arrives at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Actress Chelsea Kane attends the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Actor Peter Facinelli arrives at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Actress Kat Dennings attends the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Actor Roshon Fegan attends the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Actor Sebastian Stan attends the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Actress Jaimie Alexander arrives at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Actress Gwyneth Paltrow arrives at the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.
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Actor Robert Downey Jr., left, and his wife, Susan Downey, attend the premiere of "Iron Man 3" at the El Capitan Theatre on April 24, 2013, in Hollywood, Calif.