 Following David M. Thompson's announcement that he would be retiring from the post of head of BBC Films in September 2007, Langan was widely expected to take over his duties.Confirmation was made the following month when she was appointed Commissioning Editor of the company, taking over the day-to-day duties of BBC Films and reporting to Jane Tranter, the Controller of Fiction at the BBC.When Tranter transferred to a BBC Worldwide position in Los Angeles in 2009, the BBC decided not to fill the Controller of Fiction vacancy with a single person.