Other mistake: When Leonardo lifts up the bar he has just fashioned, you can hear a couple of people in the background say "Gold" where the others are and correctly saying "Oro" (Since the Italian word for gold is Oro).
Other mistake: There are several moments while using the clown dummy toy that make it very obvious it is an actor in a suit. Most obvious of which is that it somehow 'senses' things like the momentum and orientation of the person controlling it, when all it is shown to do is copy muscle movements/motor skills. There are far too many examples to list.
Other mistake: When Topper speaks to Ramada for the first time, we can see his name plate read "LT Sean Harley", whereas LT stands for Lieutenant, any army's lowest officer rank. The rank insignia on his collar, though, is that of a Captain (CPT). (00:19:19 - 00:20:09)
Suggested correction: Topper's not in the army, he's in the navy. He has the correct insignia for a naval lieutenant.