- Gateway to the South, where Sellers plays a variety of comic characters. Produced by George Martin and released on Parlophone, the album reached number three in the UK Albums Chart; The same year, Sellers made his first film with John and Roy Boulting in Carlton-Browne of the F.O., a comedy in which he played a supporting role for the film's lead, Terry-Thomas. Before the release of that film, the Boultings, along with Sellers and Thomas in the cast, started filming I'm All Right Jack, which became the highest-grossing film at the British box office in 1960. In preparation for his role as Fred Kite, Sellers watched footage of union officials. The role earned him a BAFTA, and the critic for The Manchester Guardian believed it was Sellers's best screen performance to date. In between Carlton-Browne of the F.O. and I'm 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 distinct leading 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, Mario Fabrizi, Leo McKern and Richard Lester. Originally intended as a private film, the eleven-minute short film The Running Jumping & Standing Still Film was screened at the 1959 Edinburgh and San Francisco film festivals. It won the award for best fiction short in the latter festival, and received an Academy Award nomination for Best Short Subject (Live Action). In 1959 Sellers released his second album, Songs for Swingin' Sellers, which—like his first record—reached number three in the UK Albums Chart. Sellers's last film of the fifties was The Battle of the Sexes; a comedy directed by Charles Crichton. The Millionairess, Lolita, The Pink Panther and divorce (1960–1963) In 1960 Sellers portrayed an Indian doctor, Dr Ahmed el Kabir, in Anthony Asquith's romantic comedy The Millionairess, a film based on a George Bernard Shaw play of the same name. Sellers was not interested in the role until he learned that Sophia Loren would be his co-star. When asked about Loren,