In 1975, the Monty Python released their first feature-length, non-sketch based film. A loving pastiche of King Arthur and his quest for the Holy Grail, the film has since gained cult status, with generations of schoolchildren and adults recalling the best gags, insults and shrubbery purchasing advice to their friends and family.

But what can Monty Python and the Holy Grail tell us about the Arthurian legends?