Harry Potter and the Half Blood Prince Movie

I think everyone would agree that the HBP movie was fit to burst with Ron and Hermione moments. I'm going to start adding these to the site soon and would love to hear what everyone's favourite moment was. So leave a comment on this post, explaining why you thought that moment was the best. My favourite is still in the hospital wing because it was cute as well as incredibly amusing.
I'll be trawling the Internet for movie reviews later and adding them to the Book and Movie Review Quotes page.