I LOVE this. Back to the Future is one of my favorite movies. Contrary to the dominant thinking out there, part 2 is my favorite just because it's so time-twisty, followed by 1 then 3.
How much do I like Back To The Future? I was a member of the BTTF Fan Club.
UPDATE: But not so much a fan that I would do this meeting Christopher Lloyd:
But had I ever had the fortune to meet Christopher Reeve... all bets would be off.