Just watched "The Dark" by Justin P. Lange..And ok somehow interesting little film, maybe too little for it's own good, but I guess the director didn't have too high pretentions with it. And that's Ok.
Ok maybe Martyrs has nothing to do with LTROI, in this case it cannot be denied that there is a similarity. On YouTube the comments and even the critics say the same. In this case is from the "Eli" (Mina) pov and not "Oskar's"
The most interesting aspect for the infected for me is, this movie shows that LTROI could totally work with teenagers as Eli/Oskar(remember that everyone was upset with the idea of an older version of them and typical teenage stuff for the tv adaptation?).
And second, a monstrous Eli would actually be much more horrible and harder to empathize with.
The main difference between Eli and the zombie girl in The Dark, is that the former is a monster/human duality, with a lifestyle that makes him impossible to embrace that human/child inside him, always trying to hide his non-human face. While Mina, at first, is a complete flesh-eater monster, full of anger and devoid of humanity, who cannot hide his monstrous appearance, living in isolation and secrecy in the forest, (perhaps Eli was like that in the early years of life as a vampire, right after being infected/abused).
The metaphor in The Dark is much more obvious, and the film's supernatural logic are not important (whether she is a zombie, a possessed girl, a ghoul etc.) than the vampirism in LTROI. Also, the "Oskar" in this is, is literally abused/damaged and absolutly secondary, but has a similar impact on the monster-girl.