[Update 2: We've found the footage on YouTube. You can watch it after the jump as long as it's up, which might not be long.]
[Update: Bay apparently realized people were embedding the video and has yanked it. But you can watch his ShoWest tribute video through the link.]
Transformers: Revenge of the Fallen director Michael Bay has posted the footage shown recently at ShoWest in Las Vegas on his official Web site, and you can watch it after the jump.
The two-and-a-half-minute montage offers a new look at Sam Witwicky (Shia LaBeouf) and Mikaela Barnes (Megan Fox), as well as glimpses of new and returning Autobots and Decepticons, including Optimus Prime, Bumblebee, Devastator and a crotchety Jetfire. The film opens June 24.