Long Live Robin Hood (1971)

Factual error: The film begins with a caption saying it's Germany, year 1195, Durrestein castle. That's kind of two mistakes and a half in a single line; Richard Lionheart was held captive in a castle in modern Austria (Germany is an acceptable approximation, arguably, considering Austria was not an autonomous state), but it was called Dürnstein castle, and more importantly, Robin Hood wouldn't meet him there as a captive in 1195, given the fact that he had already been released two years prior.

Sammo ★