Clouds of Sils Maria is a 2014 psychological drama film written and directed by Olivier Assayas, and starring Juliette Binoche, Kristen Stewart, and Chloë Grace Moretz. The film is a French-German-Swiss co-production. Principal photography took place from August to October 2013, with most of the filming taking place in Sils Maria, Switzerland. The film follows an established middle-aged actress (Binoche) who is cast as the older lover in a romantic lesbian drama opposite an upstart young starlet (Moretz). She is overcome with personal insecurities and professional jealousies—all while sexual tension simmers between her and her personal assistant (Stewart). The screenplay was written with Binoche in mind and incorporates elements from her life into the plot.

Olivier Assayas is a French film director, screenwriter and film critic. Assayas is known for his eclectic filmography, consisting of slow-burning period pieces, psychological thrillers, neo-noirs, and comedies. He has directed French, Spanish, and English-language films with international casts. The son of filmmaker Jacques Rémy, Assayas began his career as a critic for Cahiers du Cinéma. There he wrote about world cinema and its film auteurs, who later influenced his work. Assayas made several short films, and made his feature debut with Disorder in 1986.