Stoltz was hired to play the lead role in the hugely popular 1985 sci-fi comedy, which spawned two sequels.
But after five weeks of filming he was cut from the cast and replaced with Fox, after director Robert Zemeckis and executive producer Steven Spielberg agreed the actor's performance was not funny enough.
Movie bosses have now released the original footage which was shot with Stoltz before Fox took over, and the actor admits he is interested in seeing himself in the film he was never able to complete.
He tells Moviehole.net, "They certainly don’t ask the actors (whether they should release the footage but) I would be curious to see it."
And Stoltz reveals he sometimes imagines how different his life would have been if he had shot to fame in Back To The Future.
He adds, "You know, it was twenty-something years ago and I rarely look back, if at all, but in retrospect, I think just getting through that difficult period helped me realize how freeing it really was. I went back to acting school, I moved to Europe, I did some plays in New York...
“If I had become a massive star, I don't know if I wouldn't have gone into therapy. I would've been unable to walk down the street! It's a whole different life. I was lucky in that way.”