Continuity mistake: When Balian is talking with Tiberius after denying the King's proposal, watch Balian's clothing. His chain mail is visible on both sides of his shoulders in one shot; we cut to Tiberius for one line (I believe it was, "Jerusalem has no need for a perfect knight") and when we cut back to Balian, his cloak is now covering the chain mail completely.
Continuity mistake: At the end of the film when the king of England rides away from the camp, Balian's hair changes from before.
Continuity mistake: Just before the end of the movie in a scene where Balian and Sibylla ride on horses, they briefly stop next to a concrete cross and we can see village/houses in the far background (middle of the screen). In the next scene we can see all these houses being removed/replaced with woods. (03:00:10)Jay Cobra