When Bradley Cooper
stepped up to replace Mark Wahlberg
in David O. Russell
's Silver Linings Playbook
, it seems he took over for the former Fighter
star in more ways than one. Where Russell once spoke excitedly of his plans with Wahlberg, these days it's Cooper who apparently serves as his Muse
Although Silver Linings Playbook
hasn't hit theaters yet, the pair are clearly eager to keep a good thing going. Russell cast ...