. >> what's more different than a giant lego boulder chasing someone dressed like indian jones down a hill in the middle after major american city? but still, with 5 million lego bricks, that's got to be a little heavy. >> really heavy. and they are sort of moving it like it was nothing. i was like 5 million legos. >> so what about that 5 million number flashing at the end? >> we created a very big ball of legos that was at its core, was a big foam ball. >> a foam ball with an outer shell of about 4200 pieces of lego stuck to those familiar green panels. >> we used rubber cement and glued the little bricks to the plates and the plates got glued to the styrofoam which made up the giant boulder. >> it was people coming in on the week friend our office and from lucas and just sat around and ate pizza and built this huge ball. and threw it on the back of a flat bed truck. and a couple days later took it to location. >> and on location, catching the scene on camera, it turns out to be kind of like a movie shoot. >> we actually shot it over and over again. we actually had a big moving truck