What the hell was that noise Optimus made when he first transformed while fighting the Driller? It wasn't Shockwave, because it was clearly Cullen making the noise. But it's hilarious, it sounds like Prime just starts off blowing a rasberry, and then realizes "Wait, that's stupid...", so he goes back to his awesome grunting. Seriously, if you've seen the movie, you have to know what I'm talking about. It's so ridiculous it's funny.