There was much debate about how to do the robots, as there was no studio on earth that could produce enough effects for such a thing. Michael Bay solved the problem when he revealed that he had a portal to a strange alien robot world located in his basement. He revealed that these robots were brutal and always were at war with each other, in fact these robots served as inspiration for some of Bay's movies. Within a month, the robots were all casted and the movie was on a role.