The original demo they shot for this video game was so lightweight they could run it on a PS3. Quantic Dreams is a video game developer that has been around for a long time and specializes in overcoming the "Uncanny Valley" effect, where video game characters tend to creep people out because they simultaneously look real and unreal. This video game they are working on illustrates not only their expertise in full body motion capture, but also in reducing that data to the minimum required for rendering, without creeping people out. That their facial expressions can be done more realistically goes without saying, but this engine is designed to run on minimalistic hardware and still look great. Combining a lightweight animation system like this with next generation hardware means you could add things like more realistic physics for explosions or whatever, and things like AI that require more resources. That makes the engine perfect for things like virtual reality applications that require more hardware to run and perfect for Hollywood's continuing move into virtual reality and high definition media. The ability of the characters to convey a minimum amount of expressions is critical, with the latest VR hardware commonly including eye-tracking, gestures, and expressions. Although this might look like a movie, there is no reason you could not interact with any of the characters you want at almost any time.