Zespół Filmowy "X" is a Polish film production studio, inaugurated on New Year's Day, 1972.
In late 1970 or early 1971, the Polish cultural authorities approached Andrzej Wajda, at that time enjoying a particularly fecund episode in his career coming off a string of international successes, with the possibility of directing one of these teams.
Zespół Filmowy X's first production was the second film of enfant terrible Andrzej Żuławski, Diabeł (The Devil).
This film - a lavish and diabolically surrealistic depiction of the effects of the aftermath of the Kościuszko Uprising and the Third Partition of Poland on a once noble-family in a bleak, wintry Polish countryside - was met immediately with stern condemnation from the Polish cultural authorities.
Throughout the studio's existence these standards were maintained and the team produced several acclaimed pictures from several notable directors.