Heathers is the quintessential film for high school quarrels gone really wrong. In the 1988 cult classic, Veronica Sawyer (Winona Ryder) disrupts her school's social scene after accidentally killing the leader of her clique, Heather Chandler. Things get a little out of control from there, with her twisted boyfriend J.D. Dean (Christian Slater) spawning a pretty dark chain of events, culminating in an explosive ending.