Rihanna, Cara Delevingne wear sexy, plunging gowns at 'Valerian' Paris premiere

While Valerian and the City of a Thousand Planets may have fallen flat in critic reviews, its red carpet premiere looks are still flying high. 

Rihanna rocked an all-pink ensemble: a pale Prada two-piece with a long, beaded skirt that had fringe along the bottom and a pair of pink sunglasses. She also wore Chopard jewelry. 

Cara Delevingne, who stars in the movie, stepped out in a long gown that featured Swarovski crystals by Alexandre Vauthier Couture and black heels by Christian Louboutin. Her look also included jewelry from Rachel Katz and Graziela Gems. 

Valerian is in theaters now.