I don't know if racism is involved as much as stereotyping. Now is that right, no. But Jesse Jackson around 10-15 years when addressing this stereotyping gave a personal example, Jesse was walking the streets at night, either going home or back to his hotel in what ever city he was stay, he heard footsteps and turned around to see two whitemen. Jesse said he breath a sigh of relief. This example from a black man.
I do think the video is very acurate. I probably would have helped the girl myself. I think race does play a part, but if you noticed almost everyone that walked by was white regardless of which actor they chose. I wonder what would have happened if the black guy was doing this in a black neighborhood or the white guy in a predomenently black neighborhood. Would the results have been different? I think so.