10 is a 1979 romantic comedy film directed by Blake Edwards and starring, Dudley Moore, Julie Andrews, Robert Webber, and Bo Derek, in her first major film appearance. Considered a trend-setting film at the time, and one of the year's biggest box office hits, the film made superstars of Moore and Derek. It follows a man who up in middle age finds a young woman who he thinks is the ideal woman for him, leading to both a comic chase and an encounter in Mexico. The film would be one of several sex comedies Blake Edwards would make after this piece: he addressed in this film subjects like sexual promiscuity, machismo, feminism, and aging. These themes went into Edwards' later comedies.