Halle Berry made a last-minute outfit change when Cannes organizers announced a new dress code, while Heidi Klum pushed the boundaries and wore a long train anyway.

The "Monster's Ball" actor revealed exactly which part of her dress made her look ineligible for the red carpet.

The Oscar winner curiously agrees with the Cannes Film Festival ban on red-carpet nudity, even though she created a stir last week by wearing a risqué dress to the Met Gala.