I'm under the impression that Michael J Fox tries to get along with everyone, but a few have suggested that he and Crispin Glover may not have gotten along - even if they were in two movies together, and a Family Ties episode. I've heard some say that Crispin Glover can be arrogant - and, thus, the sequel disputes. It'd be awful to think they didn't get along, as they had good chemistry together.

I agree. No one can play George McFly better than Crispin Glover.