Incidentally, the definitive moment the 89 Batman didn't work for me was when Beetlejuice was confronted by the Joker, and he snaps. It was supposed to be a Sean Penn/Al Pacino-style "caged animal" moment, but instead it looked more like a Saturday Night Live cast member flailing around in a bad Christopher Walken impression.
So THAT's what that was! I could never take that scene entirely seriously either. I couldn't stop thinking of him as Mr. Mom out of costume. He just didn't do it for me as Bruce Wayne. Alec Baldwin would've been a better choice from Beetlejuice, and he probably would've had more chemistry with Basinger.
Maybe I missed it, but I'm having a hard time believing this thread has gone on so long without mentioning Avi Arad.