Jason Merritt/WireImage

WHAT SHE WORE Knightley chose a floral Valentino gown for the Seeking a Friend for the End of the World premiere. A red wreath and nude pumps completed the look.

CELEBRITY: Keira Knightley

DESIGNER: Valentino

TREND: Floral

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Keira Knightley

Keira Knightley wore Valentino on the red carpet