I guess that title is a pit deceptive. It wasn't like Pacino was throwing pens in anger. He was just being funny and having a good time.
On TMZ last night, I saw him in an airport in New York, and he was signing up a storm. One reporter asks him the secret of looking so young and he replies "Keeping quiet."
Anyone that's ever gotten Pacino, knows the autograph is really just a round scribble. But hey -- he's one of the best actors of all-time, and he signs. Autograph beggers can't be chosers!