The Mission (1986)

Deliberate mistake: During the gunfire of the Portuguese soldiers at the end, seconds before Jeremy Irons is killed, an old Indian woman is shot in her chest, but the actress/extra forgets to react and continues walking.

Continuity mistake: At the beginning, when Jeremy Irons is climbing the water falls, he is barefoot, but in one shot he uses sandals.

Continuity mistake: When Robert DeNiro renounces his vows of obedience, he enters the room with his hair tucked behind his ears. During the conversation with Jeremy Irons, the camera cuts away and returns showing that DeNiro's hair has changed style - the camera then cuts away a couple of times and when it returns his hair is behind his ears again. (01:25:00 - 01:26:00)

Fielding: Father, he's done this penance long enough, and well, the other brothers think the same.
Gabriel: But he doesn't think so, John. Until he does, neither do I.

Sebastian: Your Christian community is commercially competitive.
Altamirano: Yes. It's very prosperous. Isn't that precisely why you want to take it over?
Sebastian: No. You should've achieved a noble failure if you wanted the state's approval. There's nothing we like better than a noble failure. It's deeply reassuring to a trading nation such as my own.

Altamirano: With an orchestra, the Jesuits could have subdued the entire continent.