If it seems like Dwayne Johnson is attached to a new film almost every other day, that's probably because he is. And he's a workaholic, who has probably lifted more weight today than many of us manage in a week. His latest announcement, though, confirms what had been rumored and talked about for a while: he's attached to star in Doc Savage for co-writer/director Shane Black . The Iron Man 3 director has made no secret of the fact that he thinks Johnson is right for the lead in the film, and now Johnson has hit Instagram with a picture (see below) of Black and his co-writers Anthony Bagarozzi and Chuck Mondry sitting with Johnson and production partner Hiram Garcia to, in The Rock's words, "chop up creative and break story on this very cool project. Comic book fans around the world know that the cool thing about 'Doc' Savage is that he's the inspiration for Superman. First name Clark, called "Man of Bronze", retreats to his 'Fortres...