According to one theory about the unobserved timelines, Marty McFly died three times in Back to the Future before Doc later ...

Back to the Future Part III’s villain is the great-grandfather of Biff from Back to the Future, making him the great-great-great-grandfather of Biff's son Grizz from Back to the Future Part II.

and how Biff stole it in each one. There Should Be Two Versions Of Marty McFly At The End Of Back To The Future Back to the Future Ignores The New 1985’s Resident Version Of Marty This is just ...

With Marty’s help, however, George is able to overcome the school bully, Biff Tannen, and win the heart of his future wife Lorraine, securing his son’s future in the process. When Marty McFly ...

Check out the other now-famous actors who auditioned to play Marty McFly and Biff Tannen in the original Back to the Future.