Deadpool would do better as his own lie action movie. Where he is part of an orginization that has to confront other superheroes and keep them in check so they don't abuse their powers or get too powerful over normal humans. In the process however, somewhere along the way he would get into a fight with one of them and start a world war. And then he would debate wither he wanted to end the war or let it go on. But then he'd just look at the audiance and laugh and say 'I guess I better clean up my mess'.