roto scoping. you cut out the bus, the wheels, the shadows. you do that 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 player to just sort of cover up time changes. but for many this is a telltale sign the video is fake. unless you re shooting transformers 4 this amount of lens filter is not acceptable in home video. in addition to the lens flair, there may be another issue. i just don t believe the bus would barrel right over without hesitating a little. i m this bus driver and i see a dude in the middle of the street. oh, you know what? i don t like my job, i m just going to try to kill him. oh, that s that kid who lays under my bus every time i go by trying to get on youtube.