2012 Cannes Film Festival Fashion – Eva Longoria in White Gown. When it comes to fashion at the Cannes, celebrities always go all out, and this year Eva was spotted wearing an all white low-cut gown with a few pops of sheer detail, showing the perfect amount of skin. She wore the dress to the premiere of ‘Rust & Bone’, and her gown instantly reminded me of a classic old Hollywood. Her gown also featured a mermaid silhouette, which was perfect for showing off the star’s curves. White is one of the biggest colors this season, along with sheer and see – throughout material., so it’s not surprising that Eva being a fashion icon would show up wearing both trends. See her Cannes festival look below.