Cutscene Direct = Christopher Nolan and Director of Gameplay Development = Tim Schafer. The game would be written by Stephen King, Chuck Palahniuck, and the resurrected corpse of Douglas Adams. The development teams would be the best members of Maxis and Insomniac. Music by Damon Albarn and the other geniuses behind the Gorillaz. Art by Kohta Hirano (artist/writer of "Hellsing").
The game itself would be a third-person 3D puzzle/platformer sandbox with some of the mechanics of Fallout (limb-breaking, etc.) based off of time travel and shooting the hell out of stuff. You could travel to different times, get different weapons, find a mount for yourself (preferably a dinosaur), and cause mayhem. Or, alternatively, fix mayhem. There would be a highly developed faction and/or action-based moral choice system. Characters would be three-dimensional. Story would be deep. Graphics and locales would be exquisitely rendered.