Other mistake: Merlin says, "Man will fly someday". For a few frames after he says this, his thumb on his pipe is painted blue, then returns to its normal color. This causes a blinking effect.
Other mistake: Phileas Fogg III and a confidence man are at the Regent Street Bank to sign an agreement regarding Fogg's bet that he can travel around the world in 80 days without spending any money. A Security Bonded Transfer Company courier arrives at 10:37 with a valise filled with cash. As the two men leave the bank two minutes later, Big Ben is chiming 11:00.
Other mistake: When Jason unscrews Talos' heel blood spurts but 1) it never creates a puddle and 2) the blood jet disappears in the wide shots.