Back to the Future (1985)

Marty McFly (Michael J. Fox) is a typical 1980s teenager—until an experiment by his eccentric friend Doc Brown (Christopher Lloyd) accidentally sends him thirty years into the past. Stranded in 1955 without enough plutonium to return home, Marty must track down the younger Doc and find a way back to the future before he changes history forever.

But when he accidentally disrupts his parents' first meeting, Marty becomes his own biggest problem. Racing against time and paradox, he must set the timeline straight, get his mom to fall for his dad instead of him, and hit 88 miles per hour at precisely the right moment. Back to the Future blends sci-fi spectacle, humor, and heart into one of the most beloved films ever made.