Visible crew/equipment: In the Room of Requirement, during the Patronus lesson Harry walks behind Ginny, who stands between two other girls, and she says, "Expecto Patronum!" As the Patronus exits her wand, just before the shot cuts away, in the reflection behind the girls we can catch a glimpse of the camera, cameraman and crew member wearing a short-sleeved tee, between and behind the reflections of Ginny and the blonde girl. (01:22:05)