Other mistake: When the Pirates are arrested in Nineveh, another soldier walks up to Jonah and knocks him out with a fish. When this happens, Jonah is wearing the Cheese Curl hat. When he comes to on the Slap of No Return, he is wearing his turban again. Would the soldiers change his hat?
Other mistake: Eleanor is eating a corn dog with a fork at the ice rink snack bar. Corn dogs are not listed on the menu though.