One of my clearest memories from childhood is seeing the 1978 disaster "epic" Avalanche - starring Mia Farrow and Rock Hudson! - with my family, and roaring at the ridiculous dialogue (even though, at age 10, I barely understood why it was ridiculous) and effects (which even a 10-year-old knew were shoddy). To this very day, I'll exit some piece of crap at the cineplex and think, "Well ... at least it wasn't Avalanche-awful ... ," and terrible though it was, the movie - or rather, my family's reaction to the movie - remains one of my absolute favorite film-going experiences.
Saw it at the drive-in.