Genre: ActionDirector: Martin CampbellStars: Ryan Reynolds, Blake Lively, Peter Sarsgaard**Canada’s Ryan Reynolds shines dimly as the Green Lantern, the summer actioner of the same name based on the DC Comic and directed by Martin Campbell.Reynolds is Hal Jordan, a cocky test pilot who busts up billion-dollar prototypes just for the hell of it. Oh, and to impress Carol Ferris (Blake Lively) who …