The Court Martial of Major Keller

The Court Martial of Major Keller is a 1961 British film directed by Ernest Morris and written by Brian Clemens. It stars Laurence Payne, Susan Stephen and Austin Trevor. The film recounts the court martial for murder of Major Keller, a British army officer during the Second World War. He is charged with killing his superior officer, but remains silent, refusing to defend himself.

Source: Wikipedia