HA! I knew Ratchet would be in the movie! Also, there's your proof that the CGI is unfinished. That one front shot of Lockdown's ship has new lights on it that weren't there before. And in that close-up of Optimus' face, he moves a little bit differently, and the texture is crisper. And holy hell, Grimlock looks goddamn amazing. It looks like he's a monstrous beast that the Autobots learn to control after an initial hostile... meeting. Stinger has to be a human-built Transformer, too. Look how still "he" is when he is shown.