Corey Calliet has been training Michael B. Jordan for years. They've even become best friends while working on the sets of "Creed" and "Black Panther." Calliet isn't just a trainer though. He also works closely with directors on set to make sure the camera is getting the best out of the bodies he builds. He sat down with INSIDER to talk about how he met his star client and what it's like to work with him. With Michael B. Jordan's body getting even better in "Creed II," meet the man behind the body.