When the filmmaker in Paul Thomas Anderson's BOOGIE NIGHTS waxes elegiac about what porn could have been--a porn movie that's a real movie--THE OPENING OF MISTY BEETHOVEN is what he's talking about. Directed by Radley Metzger under the nom de guerre Henry Paris, this remake of "Pygmalion" has some wit, stylish production design, a story, rhythm, characters, and, if you can believe it, some not at all bad acting. Nothing else--not even Metzger/Paris' big-selling BARBARA BROADCAST--ever equaled it. See it, laugh, and mourn for what could have been.