Venom

Venom remains as one of Marvel's best characters and a fan favorite across the board. Originally introduced as a supervillain up against Spider-Man, and later evolved into an anti-hero of epic proportions, Venom tops the list for his own R rated superhero movie. Though there were talks of Sony doing a Venom movie using Eddie Brock as the host, giving Spider-Man a cameo, and introducing Carnage, little else has been done to bring this complex, alien character to life.

Eddie Brock's Venom is deserving of his own spin-off after the butchering he received when played by Topher Grace. Ok, that might be a little harsh, Grace played to the best of his ability and was simply just miscast (perhaps among some of the worst superhero movie miscasts). Brock's Venom is a huge guy, just in stature Topher Grace can't match up, and he's supposed to be frightening, leaving Grace's face exposed instead of his Venom face, was a poor choice that did the character no favors.

With an R rating the antihero Venom can get crazy and hunt for justice in his own twisted way. Also, if we're throwing Carnage into the storyline, that guy definitely needs an R rating as he is one of the most terrifying monsters out there. Any other rating will play down the terror that these two can bring. R rated comic book movies could really take flight with this addition.