The first trailer of the Renée Zellweger and Colin Firth starrer film 'Bridget Jones's Baby' has been released. The romantic-comedy film will be the third instalment in the 'Bridget Jones' franchise, which is based on Helen Fielding's 1996 novel 'Bridget Jones's Diary'. Directed by Sharon Maguire, and also starring Patrick Dempsey, the film is scheduled to release on September 16.