My Bodyguard (1980)

Clifford Peache is the new kid in Lake View High School. Faced with all the stress that role entails he makes his situation worse by insulting Moody, the leader of a group of bullies who extort lunch money from kids. They pretend to be bodyguards for them to protect them from Ricky Linderman who is rumored to have killed his brother in cold blood. Clifford befriends the sullen Ricky and hires him as his bodyguard. When Moody ups the ante, Ricky must decide whether fighting for what he believes in, with his haunted past and image, is justified.