Channel 4 has teamed up with FilmFlex to launch a video-on-demand digital film rental service for Film4 with more than 500 titles available at launch.

Film4OD, which Channel 4 claims will have more films available than rivals such as Lovefilm and Blinkbox, will offer a 48-hour rental service with titles priced from 50p to £3.99. Films available at launch include The Girl With the Dragon Tattoo and Shutter Island.

Julia Wrigley, head of Film4, said that the digital service would allow the broadcaster to "amplify" the film seasons broadcast on the TV channel.

FilmFlex is a joint venture between Sony Pictures Television and the Walt Disney Company.

Channel 4 already runs the 4oD on-demand service, which focuses on catchup TV programming.

Last month, Channel 4 announced that it was increasing the budget of its Film4 production division, which was responsible for hit movies including Slumdog Millionaire, by 50% to £15m a year.