Never-before-seen footage of Eric Stoltz as Marty McFly in Back To The Future

Never-before-seen footage of Eric Stoltz as Marty McFly in Back To The Future: "To celebrate the 25th Anniversary of Back To The Future, we've got never-before-seen footage of original star Eric Stoltz as Marty McFly. Plus Robert Zemeckis, Steven Spielberg and Bob Gale all explaining why they replaced him with Michael J. Fox."