the front of violet three-decker knight bus warner bros. studios, london, uk , making of harry potter studio tour

advanced adventure anniversary announcement announcements art attraction best britain bros bus children dark darkest decker decoration display double dumbledore entertainment family favourite first front harry harrypotter history hogwarts joanne knight leavesden letters lies life london looking magic magical making movie occlumency people potter potters rowling school schoolbooks secrets shot sign signs students studio studios tales theme three tour tourists travel travelling various violet wand warner wizard wizarding world year