Actress Chelsea Kane arrives at the 'Iron Man 3' Los Angeles premiere at the El Capitan Theatre on April 24, 2013 in Hollywood, California.

Writer Stan Lee arrives at the 'Iron Man 3' Los Angeles premiere at the El Capitan Theatre on April 24, 2013 in Hollywood, California.

Actress Cobie Smulders arrives at the Los Angeles Premiere of 'Iron Man 3' at the El Capitan Theatre on April 24, 2013 in Hollywood, California.

Actress Emily VanCamp arrives at the Los Angeles Premiere of 'Iron Man 3' at the El Capitan Theatre on April 24, 2013 in Hollywood, California.

Actress Tracy Anderson arrives at the Los Angeles Premiere of 'Iron Man 3' at the El Capitan Theatre on April 24, 2013 in Hollywood, California.

Actor Andrew Lander arrives at the Los Angeles Premiere of 'Iron Man 3' at the El Capitan Theatre on April 24, 2013 in Hollywood, California.

Actress Rebecca Hall (shoe detail) arrives at the Los Angeles Premiere of 'Iron Man 3' at the El Capitan Theatre on April 24, 2013 in Hollywood, California.

Actor Zachary Levi arrives at the Los Angeles Premiere of 'Iron Man 3' at the El Capitan Theatre on April 24, 2013 in Hollywood, California.

Actor Zachary Levi arrives at the Los Angeles Premiere of 'Iron Man 3' at the El Capitan Theatre on April 24, 2013 in Hollywood, California.