Okay aside from ones already mentioned:
Grease
Grease 2
Final Destination
Final Destination 2
Bill & Ted's Excellent Adventure
California Man (also called Encino Man)
Don't Tell Mom the Babysitter's Dead
Airheads
When I was in school everyone was into She's All That, Ten Things I Hate About You, Cruel Intentions, and American Pie. The first two are okay I guess but they don't make it into my top list. Cruel Intentions is a bit meh, and I never liked AP.