>> i was like, all right, i've got it. cut, print, let's move on. >> daniel takes the footage and begins the tedious process of rotoscoping. >> you cut out the bus, the shadows, you do it frame by frame. >> those elements are then layered on to a shot of the empty street. but there's a problem. because of the long duration between the shots, the lighting is off. daniel uses some hollywood magic to mask the error. >> the shadows aren't necessarily completely right. so, i added the lens flair to just sort of cover up the sun changes. >> but for many, this is a telltale sign the video is fake. >>...