Private's Progress is a 1956 British comedy film directed by John Boulting and starring Ian Carmichael, Peter Jones, William Hartnell and Terry-Thomas. The script was by John Boulting and Frank Harvey based on the novel of the same name by Alan Hackney.
Original UK cinema poster
John Edward Boulting and Roy Alfred Clarence Boulting, known collectively as the Boulting brothers, were English filmmakers and identical twins who became known for their series of satirical comedies in the 1950s and 1960s. They produced many of their films through their own production company, Charter Film Productions, which they founded in 1937.
Roy (left) and John (right) Boulting, in 1952
Frank Capra (right) confers with Roy Boulting on the editing of the film Tunisian Victory