Initially, the question was about a specific word's first use in a movie. Which in itself, while intriguing due to the subjet matter, is different from our other first occurences because asking about a specific word is getting to be a little too nit-picky as pointed out in the comments.
Secondly, part of it is from the fact that I had attempted to make it more general, using swearing in general, but as it turns out, there is actually an exact duplicate of another question.
I will be merging the two shortly.
