The Mummy: Switching Sides
Protecting yourself from Imhotep’s priests is probably not that easy. In fact it must have been pretty difficult that the crew needed to take a few takes. As a result of taking many shots here, the actors suddenly appeared standing side by side in one shot and then in the opposite order for the next shot.
King Arthur: Everything
Even movies that are based on myth have some congruities that they need to follow. So when the 5th century Sarmatian warriors were wearing modern shoes, it was quite a blow to the credibility of the movie.