Wow. This was such a surprise. It's the sweetest vampire movie you can imagine.
Let the Right One In, which can be very inadequately described as a Swedish horror film, with its central character a lonely,bullied 12 year old boy who befriends a mysterious girl who has moved in next door. It's creepy and suspenseful and quite a bit bloody in spots but at the same time has moments that are sweet and touching, and even funny. I'm trying to think of a false note in it, but can't. Great cinematography, too. In Swedish with English subtitles, directed by Tomas Alfredsen who also directed Tinker Tailor Soldier Spy.
Maybe I should give Twilight a shot.