Carrie Telekinetic Coffee Shop Viral Video: Real Or Fake?

The marketing team behind the Carrie movie launched what looks to have been one of the greatest viral video promotions of all time today. In a video called "Telekinetic Coffee Shop Surprise," a coffee shop is rigged to make it look like a girl in the store really has telekinetic powers. After a man spills coffee on her laptop, the girl uses her power to send the man flying up a wall. She then uses her power to make tables move and books fall. All the while, a hidden camera captures the surprised reaction of real customers in the store. The video has been so successful that it has racked up over 800,000 views on YouTube in less than a day. However, some are questioning if the supposed real customers are actors as well. If this prank was done with some real customers in the store, what if someone either tried to stop the girl or had a heart attack? Most of the people closest to the girl are actors in on the gag, so maybe they kept real customers far enough away to be able to calm them down if they overreacted. Some viewers are also questioning that some of the reactions seem a little rehearsed. What do you think? Is this a real hidden prank gag with real customers? Or is it fake?