Throughout the movie, Cameron Diaz wears mostly Christian Louboutin shoes. This is due to a contract between the movie producers and Louboutin himself for marketing his company's red-soled shoes.
The woman whose naked breasts are shown on display to Elizabeth Halsey is played by Christine Smith, Playboy's playmate of the month for December 2005.
Early in the film, Elizabeth (Cameron Diaz) is looking at a magazine spread of celebrity "red carpet" arrivals to decide what breasts she wants for her implants surgery. The photos are of Heather Graham (2010 Golden Globes); Katy Perry (2010 Vanity Fair); and Rose McGowan (2010 pre-Oscar dinner). Diaz also appeared on the red carpet at all three events.
Of the movies Elizabeth shows to her middle school class, two of them are rated "R": Pensieri pericolosi (1995) and Scream (1996).