Kiera Knightley is Coco Chanel in "Once Upon A Time..."

Kiera Knightley is Coco Chanel in the new Karl Lagerfeld film, "Once Upon A Time."

The  film will feature other well known figures like Lady de Grey and Vita Jackville-West in 1913's Deauville.

"Once Upon A Time..." will premiere on chanel-news.com on May 8.

Watch the trailer(below):