VIDEO : 'Transformers' Spinoff 'Bumblebee' Could Open Door for Optimus Prime Movie

'80s-set Transformers prequel Bumblebee could pave the way for an Optimus Prime movie, which producer Lorenzo di Bonaventura tells EW is at the top of the list for the universe's writers' room."I'd certainly like to do that," di Bonaventura said. "It would be a very different kind of movie than a Bumblebee movie, but equally ...