Francis Ford Coppola has been known as an admirer of filmmakers including Federico Fellini and . . . R. Kelly? According to Coppola’s son-in-law Thomas Mars, the “Godfather” director was blown away by Kelly’s 33-part video for the epic ode to cheating, “Trapped in the Closet.” Mars told music site Pitchfork of the video: “It was the best TV experience of my life . . . I’d never seen anything like it before. I watched it again and again.” And, “I watched it with my father-in-law [Coppola], and I remember him sitting there in silence for 10 minutes . . . then saying, ‘This is incredible.’ ”