Prime Michelle Pfeiffer. Prime Danny DeVito. And some Grade-A Michael Keaton as well. Tim Burton was in his bag, as the kids say, with the follow-up to his Jack Nicholson-infested megahit Batman. This time, Bruce Wayne deals with MULTIPLE headcases. The Chumps have a ball holding a magnifying glass to Burton’s tricks, themes, lighting, and gadgets. And Christopher Walken’s in this, so expect an impression or four.