"Chicken breeders and lubricant makers don't make the bulk of their money selling the rights to use their trademarks." I teach my students about "product placement" when we look at arguments and support in visual mediums. It's almost impossible to get any corporation to tell you what they paid to get their product into a hit movie, but I know that Nike paid well over a million dollars U.S. for half a dozen quick shots of their shoes in a recent movie, and everyone got several pair of free shoes as well as clothing items. I wonder if the same could be worked out in the 3D community?