[Daphne]

Gods and Monsters
Harold and Maude
Ed Wood
Babe and Babe Pig in The City (shut up, they are great films)
Arsenic and Old Lace
American Movie (a lot of people here appreciate it, though)
Iron Giant
Top Secret!
Wet Hot American Summer (again, not to the people here!)

To name a few. These are movies that are so hard to get people to watch, but when they finally do, they are suprised at how much they enjoyed them.