director

The director is the person in charge of how a film is made: where the camera goes, how a line is spoken, whether a take is good enough. Their name is the one after directed by.

The word covers anyone who runs a thing, so you get the director of a museum, a director of studies, a funeral director, and on a company board a director is a senior officer with legal duties, as in managing director or non-executive director. In the theatre the director shapes the production while the producer finds the money, which is the same split as in film. Musical director, artistic director and casting director each own a different piece of the same show. The verb is direct, the job is a directorship, and directorial belongs to the film sense, as in her directorial debut.