The original script for the movie was very different to the movie the public got to see, a lot of the original scenes were removed and new scenes filmed to cobble a different storyline together, watching the movie knowing this its pretty obvious what was done since some of the original scenes are in the wrong order, for example the exterminator goes to Caroline's home early in the film but then travels in the garbage truck with her later in the film where Caroline is wearing the outfit from the previous scene in the movie.