The humour level is being upped with additional misfits, including new teacher, "Mad-Eye" Moody (Brendan Gleeson) and the franchise's first British Director, Mike Newell.
"That is something I have been very keen on about Mike," says Heyman. "He has really focused on what is funny in that very British idea of growing up in a boarding school." And that enclosed mixed-sex situation means one other horror to contend with: girls, in the shapely form of young wizardette Cho Chang (newcomer Katie Leung). "Yes, Harry is certainly growing up," laughs Heyman.