In which film did Peter Sellers win a British Academy of Film and Television Arts (BAFTA) Award for Best Actor?

'I'm All Right Jack' is a 1959 British comedy film directed and produced by John and Roy Boulting from a script by Frank Harvey, John Boulting and Alan Hackney based on the novel 'Private Life by Hackney'. The film is a sequel to the Boultings' 1956 film 'Private's Progress' and Ian Carmichael, Dennis Price, Richard Attenborough, Terry-Thomas and Miles Malleson reprise their characters. Peter Sellers played one of his best-known roles, as the trades union shop steward Fred Kite and won a Bafta Best Actor Award. The rest of the cast included many well-known British comedy actors of the time.

The film is a satire on British industrial life in the 1950s. The trade unions, workers and bosses are all seen to be incompetent or corrupt to varying degrees. The film is one of a number of satires made by the Boulting Brothers between 1956 and 1963.

The title is a well-known English expression indicating smug and complacent selfishness.