Audio problem: After the Red Sea parts, and almost all of the Hebrews are across the dry expanse, the pillar of fire holding Pharaoh back disappears, and the chariots head into the expanse themselves to pursue the Hebrews. A very young Hebrew boy at the rear of the masses says 'Look, Grandpa! Pharaoh and his men are coming!' and points at them with his free hand. Watch his mouth: the child is merely moving his lower jaw up and down. Apparently the child actor was too young to learn any lines so the producers improvised.
Audio problem: Throughout the opening scenes, the innkeeper's lips are out of synch with his dialog due to a less-than-stellar job of overdubbing. The voice substituted for the original actor's belongs to director John Huston. (00:05:00 - 00:13:30)
Jean G