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The British The Court Martial of Major Keller is similar in theme if not in outcome to the American film Time Limit. Major Keller (Lawrence Payne) is up on charges for killing his superior officer. He refuses to defend himself, leaving it to his attorney to probe the reason for his silence. An intensive line of questioning reveals that Keller's motives were patriotic: His commander was about to desert to the enemy. Court Martial of Major Keller was written by Brian Clemens, a loyal staffer on TV's long-running The Avengers.