I hadn’t seen Purple Rain for years, and I may have been trying to get to second base when it was last on the tube. In any case, I didn’t come to my recent viewing remembering very much. Let’s get one thing clear up front: Purple Rain is not for everyone. If you’re not into poet shirts and eyeliner--or the music of Prince--you should probably flounce right on by this movie. But you’d be missing a seminal example of rock and roll filmmaking.