CBS Theatrical Films, also as CBS Theatrical Films Group, was the film production branch of the U.S. television network, CBS, which was active from 1979 to 1985. CBS was also a partner in TriStar Pictures, which started as a joint venture with Columbia Pictures (owned then by The Coca-Cola Company), and Time, Inc.'s HBO. CBS was an owner in TriStar from the start in 1982 to 1985.