What movies do you like because of one specific scene?

I hate Adam Sandler movies, but I love Happy Gilmore because he (Happy) gets in a fight with Bob Barker, in which Bob Barker whoops his ass and calls him a bitch.

I also like the movie Lake Placid, specifically because I only knew Betty White as the sweet, genteel ditz of the Golden Girls, and she says two incredibly hilarious things: “If I had a dick, this is where I’d tell you to suck it!” and “Thanks a lot, Officer Fuckmeat!” That has me rofl’ing every single time!

Are there movies that you think are dumb/boring/irritating, but you still like them because of one particular thing that surprised you?