Back to the FutureIt's been 25 years since Marty McFly and Dr. Brown (we're not talkin' the cream soda here) first burnt rubber in the doc's souped-up DeLorean.

You know, when they went 'Back to the Future' in 1985, then they did it again ... and again. Which star has self-released experimental films, and which one had to pass on a role in the sequel to care for an ailing parent? And whatever happened to Biff? We answer those and other burning 'BttF' questions.