Continuity mistake: In the scene when buying tickets to Egypt, a Celtic cross tattoo is visible on his left arm under his robe that does not appear in any other part of the movie.
Sargon: You've come to avenge your father, the great hero?
Mathayus: I fight for more than vengeance now, Sargon. I fight for what my father once believed in. And I fight for what you've corrupted.