What is the name of film about projector operatot who becomes dissillusioned with communism?

The film you're likely thinking of is "The Projectionist" (1992), directed by Yakov Protazanov.

It's a Soviet film that follows the story of a projector operator who becomes disillusioned with the communist system and starts to question his role in it. The film is a powerful commentary on the realities of life under Soviet rule and the struggle for individual freedom.