recorded eye movements onscreen

this is an interesting clip showing several minutes from there will be blood. 11 audience members had their eye movements recorded.

http://www.vimeo.com/19788132

Hee heh... this was facinating.
I giggled at the person's glance who absconded away from the concentrared area of focused glances, over to the 'light fixtures' like a little curious moth!

...wonder did they take note of age/sex and other details from the participants.
Would also be hilariously predictable to play a porn movie and record the eye movements!