I Was a Teenage Werewolf

All-time zero-budget schlock classic capitalising on the late '50s trend for teen problem pictures, and starring Michael Landon, later Little Joe in Bonanza and Dad in Little House on the Prairie. As a juvenile delinquent, he's sent to an unscrupulous psychiatrist (Bissell) in the hope he'll get the help he needs to reform; instead, said shrink's experiments turn the hapless youth into a werewolf whenever the school bell sounds.