Prison inmate Dodger Lane (Peter Sellers) has worked the system so cozily that he even gets daily deliveries of groceries. He’s near the end of his sentences when an old lag chum hatches a cunning plot to have Dodger and pals break out of jail for one night, make a heist, and then sneak back into jail so they can have a perfect alibi. With only a few days sentence left, and the perfect alibi, what could possibly go wrong? Dodger is a small-time Cockney criminal with big dreams and oily charm, whose shameless toadying and ability to work the angles have always given him a smooth time in jail. Reminds one of Bilko, in the way he operates. An unrepentant criminal to the bone, a lazy, self-satisfied thief who's always looking for an easy fix, and Sellers sinks right into the character. He nearly has the film stolen out from under him by the late Lionel Jeffries as the constantly shouting Chief Crout, the hard as-nails warder who takes over the undisciplined prison. Jeffries is a riot, all barely-contained rage, nearly choking on his lines. It's a fun and breezy, almost classic, British crime caper directed by Robert Day.

Two Way Stretch (1960)   http://www.imdb.com/title/tt0054417/