Corri may be best-known for one of her smaller parts, that of Mary Alexander, wife of the writer Frank Alexander (played by Patrick Magee), in Stanley Kubrick's dystopian "A Clockwork Orange" (1971). Although not originally cast in this role, she was brought in after the previous actress left the film. Corri was offered the role after two actresses had already withdrawn from the film, one of them, according to Malcolm McDowell (Alex in the film), because she found it "too humiliating – because it involved having to be perched, naked, on Warren Clarke's (playing "Dim the Droog") shoulders for weeks on end while Stanley decided which shot he liked the best." Corri had no such qualms about appearing naked, joking to McDowell: "Well, Malcolm, you're about to find out that I'm a real redhead." Corri earned Kubrick's respect by her willingness to undergo the grueling process of shooting endless takes. She recalled: "For four days I was bashed about by Malcolm (Alex) and he really hit me. One scene was shot 39 times until Malcolm said 'I can't hit her anymore!'"