Visible crew/equipment: On the beach there's a battle charge, and in the foreground you can clearly see a set of tyre tracks from the camera vehicle preceding the charge.
El Cid (1961)
1 visible crew/equipment mistake
Directed by: Anthony Mann
Starring: Charlton Heston, Sophia Loren, Genevieve Page, Raf Vallone
Continuity mistake: When one of the siege towers is rolled over the camera, you can see one of the pushers look for the camera and move to avoid it.
Moutamin: And thus the Cid rode out of the gates of history into legend.
Trivia: Michael Hordern plays Charlton Heston's father in the movie. In real-life, Hordern was only 12 years older than Heston.