Having actual boxers up against the actors certainly helps. It adds a bit of authenticity to it and the fight scenes play out better. Which just goes to show how great Carl Weathers was as Creed. OK clearly an athletically gifted bloke, but not a boxer. He looked a million dollars in the ring and looked every bit the Ali that he was supposed to be. I don't care what anyone says. No man has ever worn a bra top like Creed in Rocky III.