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

While we may never get to see that gown by the showstopping designer, Berry instead stepped out in a chic and eye-catching black and white gown by French designer Jacquemus. The floor-length gown featured a high neckline, an A-line silhouette, and an open back accented with a cape detail, all in a simple monochromatic stripe pattern.

Halle Berry is joining the growing number of celebrities defying the Cannes Film Festival's newly instated dress code. Halle Berry walked the red carpet today in a high-low bubble skirt dress, with a rule-breaking.