Jack Lemmon appears to swear in this movie- + it's not edited out
I can't remember at what point in the movie he says it, and it's very quickly said because of the fast, snappy dialogue of this movie- but if you use your A-B repeat button on your DVD remote to bookend the dialogue and you'll hear it. He uses a term that would never have made it into a 1950's movie. It is there and if you have a copy of the movie try and watch for it.
My votes:http://www.imdb.com/mymovies/list?l=9422378