With his medicine-ball biceps and chin worthy of an Easter Island moai, the wrestler turned actor John Cena can actually pull off wearing a daft comic book outfit, shiny silver helmet and all. That's what makes Cena's spandex-clad Chris Smith AKA Peacemaker so inherently funny: he looks the part but is a demonstrably terrible superhero. Being a hard-charging, self-sabotaging meathead with a propensity for violence and a hair-trigger temper will never make you as beloved as Superman. But it can be highly entertaining to watch.