Trial by Combat (US title: Dirty Knights' Work) is a 1976 British action adventure comedy film directed by Kevin Connor and starring John Mills and Donald Pleasence.

[3] A British organisation known as the Knights of Avalon is discontent that so many criminals can evade the law.

One day the founder of the organisation, Sir Edward Gifford, witnesses their actions, and they execute him too.

[4] Finance came from Warner Bros. Connor said the two American producers, Paul Heller and Fred Weintraub "were great, they left me alone to do the film.

"[5] The Boston Globe wrote "the scenes with Glover and Miss Leighton are about all this film has to offer.