Megatron in flying alt-mode.  Ironhide starting to transform.  Autobots power-sliding.  And perhaps most importantly, lots of stuff blowing up.  Sure, it's just 15 seconds, but it's an action-packed 15 seconds.  Check out the short but explosive new Transformers: Revenge of the Fallen TV spot at YouTube, courtesy a poster at the official movie boards, and then drop by lonegamer8's thread with your comments.