The fashion house released two teaser videos from the set of Once and Forever, a short film directed by Lagerfeld—Chanel's head designer and creative director and Stewart superfan—about the life of the iconic French fashion designer Gabrielle "Coco" Chanel. According to The Hollywood Reporter Stewart plays an actress who is preparing to appear in a film as the brand's founder.
"She played it really, really mean," Lagerfeld told WWD of Stewart's work. "You only see her in tests and she's complaining about everything. She's mean with the director; mean with the producer."
Stewart often sits front-row at Chanel runway shows, and has starred in a number of the brand's high-profile ad campaigns.
The film will premiere at Chanel's Metiers d'Art show on Dec. 1 in Rome.
Watch both teasers below: