The Guinea Pig is a 1948 British film directed and produced by the Boulting brothers, known as The Outsider in the United States. The film is adapted from the 1946 play of the same name by Warren Chetham-Strode.
The Guinea Pig (film)
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