50. E.T. the Extra-Terrestrial (1982)
It's a simple story, really: Boy meets alien. Boy and alien become best friends. Boy says goodbye to alien when his outer-space buddy has to go home, causing audiences everywhere to sob uncontrollably. How Steven Spielberg tells it, of course, makes a world of difference, as he infuses this family blockbuster with a childlike sense of awe. If you can think of a more magical '80s movie moment than E.T. and Elliott biking past the moon, we'll personally buy you a bag of Reese's Pieces. Rated PG.