The Marauders - Harry Potter and the Prisoner of Azkaban, Chapter Nineteen ↳ The Servant of Lord Voldemort “Remus!” Pettigrew squeaked, turning to Lupin instead, writhing imploringly in front of him. “You don’t believe this… Wouldn’t Sirius have told you they’d changed the plan?” “Not if he thought I was the spy, Peter,” said Lupin. “I assume that’s why you didn’t tell me, Sirius?” he said casually over Pettigrew’s head. “Forgive me, Remus,” said Black.
"I got to punch Malfoy, which was amazingly good fun. These were the days when I had a huge crush on Tom Felton. The only problem I had is that he made me so giggly; we had to do lots of different takes because I was really embarrassed and giggly." — Emma Watson about the punch scene in Harry Potter and the Prisoner of Azkaban