Peter Sellers he also said that in Sellers's previous films he had "been at his worst recently". In 1969 Sellers starred opposite Ringo Starr in the Joseph McGrath-directed film "The Magic Christian". Sellers portrayed Sir Guy Grand, an eccentric billionaire who plays elaborate practical jokes on people. The critic Irv Slifkin remarked that the film was a reflection of the cynicism of Peter Sellers, describing the film as a "proto-Pythonesque adaption of Terry Southern's semi-free-form short novel", and "one of the strangest films to be shown at a gala premiere for Britain's royal family". The film, a satire on human nature, was
Peter Sellers All Right Jack", Sellers starred in "The Mouse That Roared", a film in which Jean Seberg also appeared, and was directed by Jack Arnold. He played three leading and distinct roles: the elderly Grand Duchess, the ambitious Prime Minister and the innocent and clumsy farm boy selected to lead an invasion of the United States. The film received high praise from critics. After completing "I'm All Right Jack", Sellers returned to record a new series of "The Goon Show". Over the course of two weekends, he took his 16mm cine-camera to Totteridge Lane in London and filmed himself, Spike Milligan,