Tim McGraw made his film debut in the indie flick "Black Cloud," which premiered Friday night at the Nashville Film Festival. Tim, wife Faith Hill and their entourage of about 40 people sat in the center of the theater and excitedly watched him play a small town sheriff. Tim and Faith left the theater before the lights came up, but director Rick Schroder stayed and answered questions from the audience. ''He was a natural,'' praised Rick of his musical star. ''He could definitely have a career as an actor.''