While we film fans, die hard comic aficionados and non, can thank Jon Favreau (and Robert Downey Jr.) for bringing Iron Man to life in an entirely fulfilling and believable way. That said, there were more than a few problems with its formulaic sequel. So, sometimes, it’s necessary to bring some fresh legs into the game to help the series go out with a win. For those of you not sure who Shane Black is, check out Kiss Kiss Bang Bang, The Monster Squad, The Last Boy Scout and of course Lethal Weapon…we’ll wait. There’s a common set of themes running though all his movies and without sounding like it’s…