Other mistake: When Tubal meets Shylock outside the brothel after Shylock's "Hath not a Jew eyes?"-speech, a man in a passing gondola spits on Tubal. The spittle hits Tubal's clothes (And as the man is sitting while Tubal stands, he could not have reached any higher in any case). Tubal stills reaches up to his face and wipes it with his fingers, as if the spittle was there.
Other mistake: When Shaun is hitting a zombie after leaving Liz's place, you can see he hits the grass, not the zombie. Yet the zombie reacts.
Other mistake: In the battle at Gaugamela scene where Cleitus jumps off his horse to help Alexander in the battle, Cleitus is seen cutting the head off a barbarian and throwing it at another. Two seconds later he is seen swinging that same head back and forth.
Other mistake: The engagement ring that Mia gets at the beginning is larger than the one she gives back to him at the wedding.
Other mistake: One joint, already partially smoked by Bobby and Jonathan when Mrs. Glover enters the room, gets passed around a few times and lasts for an unusually long period of time. When it is already too small (barely big enough to be held), more hits are taken but the joint doesn't really get smaller. (00:12:42 - 00:17:03)
Other mistake: When in the Mayan temple Flynn pools out the book. It is completely intact and the pages are flat and even. A book which has been under water for a long time (during their swim) would not look like that.
Other mistake: When Jack asks Greg to throw a brick at the RV window and it hits the car windshield Dina and Pam pop their heads out of the RV door looking shocked. In the next scene Pam and Greg are walking into the RV like it's the first time, seems like Pam wouldn't have that reaction to the RV if she's already seen it.
Other mistake: When Viktor is singing the Krakhozian national anthem his words are absolute gibberish and bear no resemblance to any Eastern European country's language.