Lea Seydoux & Gaspard Ulliel Showcase Fashion at 'Saint Laurent' Cannes Premiere!

Lea Seydoux is gorgeous in an emerald green dress while attending the premiere of her latest film Saint Laurent during the 2014 Cannes Film Festival on Saturday (May 17) in Cannes, France.

The 28-year-old actress was joined by her co-stars Gaspard Ulliel, Aymeline Valade, and Amira Casar.

PHOTOS: Check out the latest pics of Lea Seydoux

Earlier in the day, Lea and Gaspard rocked blazers while promoting the biopic on the famous fashion designer at the photo call.

FYI: Lea is wearing Prada and Chopard jewels.

10+ pictures inside of Lea Seydoux and Gaspard Ulliel attending the Saint Laurent premiere…