Leonardo DiCaprio, star of the film "Inception," arrives at the premiere of the film in Los Angeles, Tuesday, July 13, 2010. (AP Photo/Chris Pizzello)

French actress Marion Cotillard, a cast member in "Inception," poses at the premiere of the film in Los Angeles, Tuesday, July 13, 2010. (AP Photo/Chris Pizzello)

Christopher Nolan, left, director of "Inception," poses with cast members, from left, Ellen Page, Leonardo DiCaprio and Marion Cotillard at the premiere of the film in Los Angeles, Tuesday, July 13, 2010. (AP Photo/Chris Pizzello)

Cillian Murphy, a cast member in "Inception," poses at the premiere of the film in Los Angeles, Tuesday, July 13, 2010. (AP Photo/Chris Pizzello)

Leonardo DiCaprio, left, star of the film "Inception," signs autographs at the premiere of the film in Los Angeles, Tuesday, July 13, 2010. (AP Photo/Chris Pizzello)

Joseph Gordon-Levitt, a cast member in the film "Inception," poses at the premiere of the film in Los Angeles, Tuesday, July 13, 2010. (AP Photo/Chris Pizzello)

Leonardo DiCaprio, left, star of the film "Inception," poses with the film's director Christopher Nolan at the premiere of the film in Los Angeles, Tuesday, July 13, 2010. (AP Photo/Chris Pizzello)

Lukas Haas, a cast member in "Inception," poses at the premiere of the film in Los Angeles, Tuesday, July 13, 2010. (AP Photo/Chris Pizzello)

Ellen Page, a cast member in "Inception," poses on the carpet at the premiere of the film in Los Angeles, Tuesday, July 13, 2010. (AP Photo/Chris Pizzello)

Leonardo DiCaprio, right, star of the film "Inception," makes his way to the theater at the premiere of the film at Grauman's Chinese Theatre in Los Angeles, Tuesday, July 13, 2010. (AP Photo/Chris Pizzello)

Christopher Nolan, director of the film "Inception," arrives at the premiere of the film in Los Angeles, Tuesday, July 13, 2010. (AP Photo/Chris Pizzello)

Japanese actor Ken Watanabe, a cast member in "Inception," poses with his wife Kaho Minami at the premiere of the film in Los Angeles, Tuesday, July 13, 2010. (AP Photo/Chris Pizzello)

In this film publicity image released by Warner Bros., Marion Cotillard, left, and Leonardo DiCaprio are shown in a scene from "Inception." (AP Photo/Warner Bros., Melissa Moseley)

In this film publicity image released by Warner Bros., Leonardo DiCaprio is shown in a scene from "Inception." (AP Photo/Warner Bros., Melissa Moseley)

In this film publicity image released by Warner Bros., Leonardo DiCaprio, left, and director Christopher Nolan are shown on the set of "Inception." (AP Photo/Warner Bros., Melissa Moseley)