They’re not related, they’re not neighbors, and they’re separated in age by at least five decades: So how did Marty McFly and “Doc” Brown first meet?
BEST EXPLANATION: The question was posted on the Mental Floss website—and was soon answered by none other than Back to the Future co-writer Bob Gale.
According to Gale: Marty was instructed by his parents to avoid Brown, which, naturally, only made Marty more curious about the “crackpot” scientist. “Marty snuck into Doc’s lab, and was fascinated by all the cool stuff that was there,” Gale wrote. “When Doc found him there, he was delighted to find that Marty thought he was cool and accepted him for what he was.” The rest is history. Or, to be more precise, multiple histories.
[youtube=http://www.youtube.com/watch?v=SR5BfQ4rEqQ]