Peter Butterworth beyond the camp grounds. He was subsequently sent to Stalag Luft III, near Sagan, the scene of "The Great Escape". Whilst at Stalag Luft III he met Talbot Rothwell, who later went on to write many of the Carry On films in which Butterworth was to star. Rothwell and Butterworth formed a duet and sang in the camp shows, where booing and catcalls covered the sounds of an escape tunnel being dug by other prisoners. Butterworth was one of the vaulters covering for the escapers during the escape portrayed by the book and film "The Wooden Horse". Butterworth later auditioned
Bill Ash escape, but the tunnel was discovered when 10 prisoners had got away. Ash continued the attempt and eventually gained his freedom. He boarded a goods train for Kovno, but was discovered by station guards and returned to Sagan. His de-briefing after liberation from captivity in April 1945 records the places where he was imprisoned as Dulag Luft (Oberusel) for about three days in June 1942, then Stalag Luft III at Sagan from June to September 1942 Oflag XXI-B (Schubin), where he was held from September 1942 to April 1943, back to Stalag Luft III for April and May 1943, and