The Harrad Experiment is a 1973 movie about a fictional Harrad College where the students learn about sexuality and experiment with each other. Based on the 1962 book by Robert Rimmer, this movie deals with the concept of free love during the height of the sexual revolution which took place in the United States during the 1960s and 1970s.

The movie stars James Whitmore and Tippi Hedren as the married couple who run the school, and includes a young Don Johnson (with one brief scene with full frontal nudity) as one of the students who tries to go beyond the rules, and Melanie Griffith in one of her first film roles.

At Harrad College, where controversial coed living situations are established, the students are forced to confront their sexuality in ways that society previously shunned. Part of the experiment is to pair incompatible members of the opposite sex as roommates in order to make them shun the traditional concept of monogamy. The film's primary two "couples" are the sex-crazed Stanley (Don Johnson) and ultra-timid Sheila (Laurie Walters), and insecure Harry (Bruno Kirby) and liberated Beth (Victoria Thompson). In charge of the "experiment" are Prof. Philip Tenhausen (James Whitmore) and his wife, Margaret ('Tippi' Hedren), who seem to enjoy the tension they instigate, as well as the graphic sexual episodes that unfold. 'Tippi's' 14-year-old daughter Melanie Griffith was an extra. Based on Robert Rimmer's best-selling book. Followed by a 1974 sequel "Harrad Summer." Written by alfiehitchie & tipsyheadrinse