A company was doing an English-language movie where, at one point, an exhausted messenger was supposed to dash in, collapse, and gasp out a vital message in Swahili. They even found someone who knew the language, and the scene worked beautifully in the movie, until it played in an African town where Swahili was well-known.
A moment of high drama nose-dived into comedy as the panting messenger gasped out: “I don’t think I am being paid enough for this part!”