"He's a great actor. I mean, some might say he's better than David in certain ways, but he just didn't fit the role, and that's why he didn't get that," the director said of Hoult, who plays Lex Luthor in the new movie.

“It was just difficult to figure out where I was going to come from with Superman ,” Gunn said speaking to io9 in Los Angeles last week. “And I think that it really started with my dog in a lot of ways. The idea of putting in Krypto, I think, was the fun part for me, because that was something that we hadn’t really seen in a Superman movie.”