in the part where O'Connell is fighting the gaurd mummies (which he refers to as "these guys") when he's fighting one on the upper deck, the bus comes to a low bridge. The mummy turns around a reads the "LOW BRIDGE" sign, then makes a sound of suprise before he meets his doom.

Now how could a 3000 year old mummy, who was raised on reading Egyptain heiroglyphs when he lived, read English? this is a small slip-up, but it bothered me ever since the movie first came out.

Also, it had something red in its mouth. Possibly one of O'Connell's shotgun bullets, but why would it be in his mouth?