Movies
Rex Features
In an interview with Zoo magazine, the actor admitted that the teenage stars were "all unbelievably horny" from the wizard series' third instalment to "probably about the end of the fifth".
He added: "Then it all settled down."
Harry Potter And The Half-Blood Prince arrives in cinemas on July 15.
Movie Reviews
'The Vow' reviewChanning Tatum tries to win back Rachel McAdams in romantic drama The Vow.
At the Movies
This Week's 5 Hottest Movie VideosTrailers for The Avengers and Spider-Man are among this week's highlights in film.
Movies Interviews
Daniel Radcliffe talks 'Woman in Black'The actor talks to Digital Spy about his first post-Potter outing.
Box Office Charts
'Chronicle' leads UK box officeSuperhero drama Chronicle leads the UK box office ahead of Journey 2.
