To me it looks like they have the tailrotor rotating the incorrect way. I might be seeing things but what do you think?
It appears at approx 45 sec into the trailer where the heli is starting up on the oil rig helipad. Try playing it at 0.25 speed. It appears as if the blade's trailing edge is leading. Which way does the tail rotor rotate on a AS350? The second video seems to confirm my view.
