Quote from : Harry Potter and the Prisoner of Azkaban Movie

Professor Lupin: The very first time I saw you Harry, I recognized you immediately. Not by your scar, by your eyes. They're your mother; Lily's. Yes, I knew her. You mother was there for me at a time when no one else was. Not only was she a singularly gifted witch, she was also an uncommonly kind woman. She had a way of seeing the beauty in others, even, and perhaps most especially, when that person couldn't see it in themselves. Your father, James, however, had a certain, shall we say, talent for trouble. A talent, rumor has it, he passed onto you. You're more like them then you know, Harry. In time you'll come to see just how much.