Cannes has come to a close! The French Riviera became a veritable who's who of Hollywood as celebrities popped up at the world's most glamorous film festival. After making a casual arrival, Kristen Stewart stepped out at the premiere of her new movie, Clouds of Sils Maria, flashing big smiles on the packed red carpet. Elsewhere, Cara Delevingne and Jessica Chastain caught up after getting camera-ready for a show, Lana Del Rey and Justin Bieber leaned in close for a cute snap at the star-studded amfAR gala, and Robert Pattinson had a chuckle with Maps To The Stars costar Sarah Gadon. Keep reading to see all the stars at Cannes!