How did two Bobs, fresh off back-to-back flops, the studio's second choice sitcom star, and a script that changed more than Marty's future, er, present, become one of the most beloved movies of all time? Plus, Sid Sheinberg's terrible title ideas, the origins of "nuking the fridge," and how Crispin Glover girded SAG for the AI battle of the 2020s.