then the car was crashed. i said, norman, you have to drive much faster than you think you should because we have only this one shot. >> and so i crashed with 20 kilometers per hour into the car. it was everything i wanted. >> with filming complete, norman and dominic start editing. they layer the three shots on top of each other. isolating michel and removing the garbage cans use a complex process called compositing. >> it took a lot of time. >> viewer jump at the chance to watch the latest exploit. >> people just want to share the mess unfolding. you know good can't come from jumping on a trampoline onto a car, and then of course it accident. >> internet detectives scour the video for clues to fakery, and then catch a mistake. can you spot it?