For a long time I had a rule that no movie is good if a kid has to act in it. This was probably a bit over-stated, but it certainly led to some good arguments. It was the 2008 Swedish vampire film Let The Right One In that forced me to relent. While the movie would still be rightfully upheld as one of the premiere post-millennial horror films even without them, the two central performances, by 11-year-olds Kåre Hedebrant and Lina Leandersson, give the movie its beating heart. A lot of child actor performances flit between melancholy and innocence, but Leandersson’s, in particular, has a complexity to it, with shades of menace and self-loathing and tenderness, even as she bleeds from the eyes and commits countless gruesome murders. By the end of the movie, even decapitation feels sweet, and that’s a testament to the feeling she and Hedebrant bring to their roles. [Clayton Purdom]