LOS ANGELES (Reuters) - Robert Pattinson has set young hearts aflutter as the teen vampire Edward Cullen in the “Twilight Saga” films, but as the sun sets on the franchise that launched his career, the actor is looking for more grown-up and “dangerous” roles. “Breaking Dawn - Part 2,” released this week, is the fifth and final in the series, and Edward’s character shifts from brooding, tormented lover to a contented husband and father who must protect his family from an ancient vampire clan.