Corrected entry: The swords used by the knights are referred to as "broadswords" by characters in the movie. This term, however, was not used in the Middle Ages, a knight's weapon was simply referred to as an "arming sword". To use "broadsword" for a knight's sword is a 19th century invention, to distinguish them from smaller weapons.
Jabberwocky (1977)
1 corrected entry
Directed by: Terry Gilliam
Starring: Michael Palin, Warren Mitchell, Harry H. Corbett, John Le Mesurier
Visible crew/equipment: When the Black Knight falls from his horse while attacking Dennis there is a lorry parked in the background. (01:33:05)
Narrator: It is the middle of the dark ages, ages darker than anyone had ever expected.
Correction: They wouldn't have used 'arming sword' - they would have used words you or I would not have been able to understand. They use modern English so audiences can understand the film, and that is not an error. See similar corrections for Braveheart and Troy.