Celador Films was founded in 1983 by Jasper Carrott and Paul Smith and has since changed ownership. It operates as a small, independent film production company that contracts freelance staff to produce films. Notable films include Slumdog Millionaire and The Descent. Though Celador produces fewer films each year than larger competitors like Sony Pictures, some of its films have been financially successful, such as The Descent which earned a $57 million profit. Celador competes in the film market based on ticket and DVD sales.