Back to the Future's timeline shenanigans can get complicated. Sometimes Back to the Future's time travel causes paradoxes, and at other times it stops paradoxes from forming. There's a reason why the ...

"You know that new sound you're lookin' for? Well listen to this!" Marty McFly's entire future rests on being able to play the guitar at his parents' Enchantment Under the Sea dance, all the way back ...