The space shuttle orbiter Discovery was used in the film. Awesome, but I don’t know why it was attached to the Xanthium when it could be removed. There were no humans going with the Autobots, nor could all/most of the robots fit in it, let alone pilot it. Also it was a shame Bay had to blow it up. It would have made a historic Omega Supreme or Sky-Lynx, or even Astrotrain.