In this interview with ThreeSpeech, Wheelman executive producer Shaun Himmerick has said that the Midway Vin Diesel movie adaptation is a cinematic effort of around ten hours in length.
"We’ve got the main cinematic thrust of the game, the main story arc - 8-10 hours book-ended with cinematics, it’s where the cinematic flavour of the game lies," he said.
"Then we’ve also got the side events, the player can drop out of the story arc whenever they want and just explore the world in freeroam, and that’s when they come across the events."
Play's got this down for an October release for PS3, 360 and PC. Full thing through the link.