Have you checked it out yet? It's super-fun. Trailers, video clips, full movies to watch... it's worth spending some time with.
My personal favorite part is the Jason Polan welcome video on the front page. (Or, since they'll have to put something else on the front page eventually, archived here.) Click the "full screen" option in the lower right corner of the video... it's worth watching big! I got to help out a bit with the production of that video, and it was really fun to spend some time in the parts of the company I don't normally work in. So, thanks, Jason, Ryan, Chris, Curtis, and everyone else who helped make that happen!