Fake. the rotor blades on the front rotor are on backward. The front rotor advances on the right side, USA style, the rear rotor advances on the left side, EURO style.... The movie has the front rotor advancing on the wrong side, and that isn't looking at the blade rotation, it's looking at the blade root fitting to the blade inner chord.
The rear rotor in the video is advancing on the left side too.. looking at the root fittings, so, yeah, is fake, da. Would be entertaining to fly a tandem rotor with both rotors advancing on the same side, that is they are clashing in the mesh... opposite direction of the blades over the transmission drive tunnel. Would be fun as far as torque offset goes or yaw pedal, good for the first 0.1 of a second,
Forget about the flight dynamics that are wrong too or the mother of all dynamic rollovers. Forget about the lack of coning...