Despite containing relatively few depictions of sexual behavior, the MPAA gave the movie the R rating for all the conversations about sex and verbal descriptions of sexual acts. However, according to director Bill Condon, the MPAA members thanked him afterwards, because they had found the movie very educational nevertheless.
On the DVD commentary, director Bill Condon reveals that he wanted to include in a montage a clip from I Love Lucy (1951) in which a character makes a joking reference to Dr. Alfred Kinsey's research. Condon says that he was unable to use the clip because Lucie Arnaz (the daughter of Lucille Ball and Desi Arnaz) denied him the rights, offering very little explanation aside from claiming that her parents would never allow themselves to be associated with Kinsey.
Cole Porter wrote the song "Too Darn Hot" for the Broadway musical "Kiss Me Kate," which premiered in 1948, the same year as the publication of Alfred Kinsey's book "Sexual Behavior in the Human Male". The song contains the lyrics "According to the Kinsey report / ev'ry average man you know / much prefers to play his favorite sport / when the temperature is low." The Ella Fitzgerald recording of this song is played on the soundtrack. When MGM produced its movie version, Kiss Me Kate (1953), the same year as the publication of Kinsey's "Sexual Behavior in the Human Female", the film's censors changed the lyrics to "According to the weather report...."
Tim Curry admitted that his casting in the film as the conservative Thurman Rice was ironic due to Curry's famous role as the sexually experimenting Dr. Frank N. Furter in The Rocky Horror Picture Show (1975), and it was director Bill Condon's intention to avoid portraying Rice as humorless.