backtothefuture.wikia.com

ADOxn TIL that Tom Wilson, who portrayed Biff Tannen in the Back to The Future trilogy made a song answering the most repetitive questions about the films that he wishes people would stop asking him. It's called "The Question Song."
R9Ll TIL that, from Marty’s perspective, the entire Back to the Future trilogy takes place within three crazy weeks.
d67Q TIL the time machine in “Back to the Future” was originally going to be a refrigerator, but was changed when the creators thought kids would trap themselves in fridges while replicating the scene.