Gary Oldman doesn't think highly of his work in four of the eight films in the Warner Bros. franchise. about Harry Potter. He first played mentor and godfather to boy wizard Sirius Black in Harry Potter and the Prisoner of Azkaban (2004), but believes he had nothing to be proud of as a result of the experience. Speaking to Happy Sad Confused podcast host Josh Horowitz, Oldman said, "I think my work in it (the franchise) is mediocre."
According to the actor, he had to find time to read the novels by JK Rowling, on which the Harry Potter films are based, as did his colleague Alan Rickman, who played Professor Severus Snape. “Maybe if I had read the books like Alan, if I had foreseen the events, honestly, I would have played it differently,” Oldman noted.
Earlier, in a conversation with Drew Barrymore on her TV show of the same name, Gary said that his roles in the films about Harry Potter and Batman “saved” him during a divorce and gaining custody of his minor sons. With a small investment of time, these projects gave him enough money so that he could raise his children and not leave them for a long time.