Following Robert Pattinson’s post-Twilight* career trajectory is so far turning out to be a productive use of time; he’s already stepped out of the boundaries of that franchise by taking the lead in David Cronenberg’s Cosmopolis (Grady’s review), he’s on the cast of Werner Herzog’s next outing, and now he’s signed up for James Marsh’s post-Shadow Dancer project, Hold Onto Me, where he’ll work with the endlessly talented Carey Mulligan. Pattinson takes efforts to prove himself as a real actor daily, it seems, and while Mulligan has no such chip on her shoulder she’s still one of the best young actresses working in film today, so suffice it to say that I’d be…