Colin Firth, Julianne Moore and David Tennant star in love-triangle comedy 'The Joy of Sex'

Director Sharon Maguire, known for Bridget Jones's Diary, has assembled a star-studded cast for The Joy of Sex, an unconventional love-triangle comedy about how the famous 1970s lovemaking manual was created. The film stars Colin Firth, Julianne Moore, Laura Linney and David Tennant, among others. It has already been pre-sold to Lionsgate, Wild Bunch and other distributors.