10. 'Star Trek IV: The Voyage Home' (1984)
Yup, the one with the Whales. Trek's biggest theatrical hit until 2009's J.J. Abrams movie. And you can see why, thanks this charming and hilarious race-against-the-clock to save the 23rd century from a probe seeking the song of a mammal long extinct. So Kirk and Spock slingshot around the sun (naturally) to go back in time to 1986 San Francisco. There, they must find two humpback whales, bring them back to the future in their stolen Klingon ship, and make plenty of LOL moments ("double-dumbass on you!") along the way. It's a perfect movie, no matter the genre.