Two posters were made for this film, one showing leads James Spader and Maggie Gyllenhaal and the other showing a model from behind bending over. Gyllenhaal admitted that the model was not her but it was someone who was dating her ex-boyfriend.
In the source story by Mary Gaitskill, the central character is Debby Roe, her employer is called only "the lawyer," and they live in Michigan. In the film, she is called Lee Holloway, he is called E. Edward Grey, and they live in Florida.
The trivia item below may give away important plot points.
The song that plays over Mr. Grey and Lee at the end of the movie is "Chariots Rise" by Lizzie West. The original lyric is "What a fool am I, to fall so in love," but the director did not want to imply that Lee was being foolish, and asked if it could be altered. Because she wanted the song to be in the movie, Lizzie West re-recorded the line as "What grace have I, to fall so in love."