Back at the Front (titled Willie and Joe in Tokyo in the UK) is a 1952 American comedy film directed by George Sherman and starring Tom Ewell, Harvey Lembeck and Mari Blanchard, very loosely based on the characters Willie and Joe by Bill Mauldin.
Mauldin repudiated both films, and refused his advising fee.
After returning to civilian life they are recalled to active duty and end up part of the post war occupation forces in Japan.
Chaos ensues as they attempt one con job after another in order to avoid work details and get leave to spend time in Tokyo.
This article about a film on World War II is a stub.