Character mistake: Early in the film, Sister Paxton reveals that she wants to come back as a butterfly after she dies. Reincarnation is not a tenet of Mormonism.
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.
Character mistake: When Jodie and Colt are in her trailer, discussing what should be done next, Jodie suggests Colt needs to cross the border. But they are in Australia, which only borders the sea.
Character mistake: When Axel is being arrested by the female officers, he says he's been a cop for "thirty years, and black for longer than that." Axel has been a cop for at least 40 years; the first film took place in 1984.
Character mistake: The official in charge of announcing the voting results keeps pronouncing Cardinal Adeyemi's name in different ways; he puts the accent on the last "e" the first time, then the French way on the last "i", then mere seconds later the "e" again. Considering Adeyemi already walked in the conclave as one of the 4 favourites, and that utmost care was put in the preparation of the ceremonial (in an earlier scene, Ralph Fiennes' character makes sure he knows how to pronounce the name of one of the unimportant cardinals), it's quite the egregious mistake that he keeps repeating. (00:44:20 - 00:44:50)
Character mistake: When Ryan asks Aiden how many people are watching the livestream, she says that it's already at three million while looking at the back of her phone. (00:01:36)
Character mistake: Characters frequently refer to there being crocodiles living in the water. Alligators live in Florida, not crocodiles. And although they are closely related, they are not the same species.