Photo Gallery
I Will Survive: 14 Must-Know Lessons From Watching Scary Movies

Just say no!
Being a drug addict sucks — just ask Amanda (Shawnee Smith, pictured), from Saw. There's never enough money for that next high, and worse, you run the risk of being abducted by Jigsaw, who preys on the weak-willed and pathetic. But if you don't mind slicing into people to find the key that'll take that modified bear trap off your head, you'll be just fine.