Celador Films was originally formed in 1983 as an independent production company owned by Complete Communications. It was later sold to Dutch group 2waytraffic along with the rights to Who Wants To Be A Millionaire?. Celador produces films and television shows on a project-by-project basis, employing freelance staff and obtaining funding from various sources. Notable Celador productions include Dirty Pretty Things, Separate Lies, The Descent, and Slumdog Millionaire, which they co-funded. Though small, Celador has enjoyed independent success in Britain and is now one of the country's most renowned studios.