Raging Bull is a 1980 American biographical sports drama film directed by Martin Scorsese, and adapted by Paul Schrader and Mardik Martin from the Jake La Motta memoir Raging Bull: My Story. It stars Robert De Niro as Jake LaMotta, a middleweight boxer whose sadomasochistic rage, sexual jealousy, and animalistic appetite destroyed his relationship with his wife and family. Also featured in the film are Joe Pesci as Joey, La Motta's well-intentioned brother and manager who tries to help Jake battle his inner demons; and Cathy Moriarty as his abused wife. The film features supporting roles from Nicholas Colasanto, Theresa Saldana, and Frank Vincent. Scorsese was initially reluctant to develop the project, though he eventually came to relate to La Motta's story. Schrader re-wrote Martin's first screenplay, and Scorsese and De Niro together made uncredited contributions thereafter. Pesci was an unknown actor prior to the film, as was Moriarty, who was suggested for her role by Pesci....