the budget was way over what they say it was
you don't advertise a 2600 camera with a 10k budget.
you pay at least 100k for that
if you follow strobist.blogspot.com, you see what miracles the pro's pull off with just one or two well placed strobe.. i don't have any doubts that no more than one or two small lights were used in each scene.
he did have more than 50K worth of lenses in his arsenal but i'm convinced the cost of the video was what they said it was.