Visible crew/equipment: When the Muslim armies approach Brendan Gleason's castle there is a side shot of the Muslims army coming to a halt. You can see the marker stake with yellow tape at the top (used during production as a mark).

Factual error: The title (as opposed to the name) is spelt 'Marshal', not 'Marshall' as it appears in the caption when Balian first meets Tiberius.

Revealing: In the scene where Muslim emissary arrives to Jerusalem and Guy de Lusignan stabs him in the chin, look at the blood. It bursts from something attached to his shoulder.

Revealing: The shields carried by the crusader extras in the marching and pre-battle scenes, etc. are all made from the same casting. Some differ, but the majority have identical battle damage, gouges and slashes.