Character mistake: When the minion tries to get out on the top of the small car, it faces forward, but two shots later, it is now facing the back.
Character mistake: When the MC introduces Lucius and his team during the naval battle, he says, "Today, we relive the battle of Salamis; the Trojans vs the Persians." The battle did involve the Persian empire, but not against "Trojans", but rather the Greeks.
Character mistake: Zhen tells Mr. Ping and Li that at least they didn't lie to Po, and Mr. Ping says that it's true. It's actually not true, because Mr. Ping lied about the secret ingredient in his soup and Li lied about knowing Chi.