Crispin Glover played George McFly in Back to the Future (1985), but was replaced by Jeffrey Weissman in Part II. Weissman was made up to look like Glover so that this film could incorporate excerpts from the original. All shots of Weissman are either from the back, at an angle, or with Sunglasses so that the audience wouldn't notice that it is a different actor. Elisabeth Shue was cast as Jennifer, and all the closing shots of Back to the Future (1985) were re-shot for the beginning of thi ...[Read Story ]