I have a few more posts on the way today, but I just came across this.
As you may or may not know, it has become a part of pop culture legend that Eric Stoltz was the original pick to play Marty McFly in Back To The Future. But after five weeks of shooting the director, Robert Zemeckis, and producer, Steven Spielberg decided they needed to change directions for the character and he was removed and replaced by, of course, Michael J. Fox. Some footage of what Stoltz did is being incuded in the new blu-ray release of Back To The Future. It's pretty wild.
I realize that Eric Stoltz is a successful actor, and has made his share of money. But, man, it must have hurt to be yanked off of Back To The Future and for the movie to become such a huge smash hit.