Moria calls it "strong and unusual" and says, "Far more so than it is a vampire film, Let the Right One In is a film about friendship and the closeness that slowly grows between young, bullied Kåre Hedebrant and the alien nevertheless warm-hearted Lina Leandersson." 1000 Misspent Hours calls it "a terribly sad tale with a happy ending more horrible than any of the unhappy conclusions it might have come to instead."
DVD Talk has several reviews, all positive. One says, "There are average vampire movies, unexpectedly good vampire movies, and then there is Let the Right One In." Another says it "accomplishes the nearly impossible feat of simply being original." Yet another describes it as
a film of extraordinary mood and wildly inventive directorial potency. It's a hushed, gentle story of provisional friendship, the ordeal of adolescence, and the curse of vampiric immortality. A hypnotic motion picture from beginning to end, "Right One" is a marvel: an ingenious genre film that manages to terrify and endear in the same instant, deftly erecting one of the most persuasive, haunting movie experiences of the year.Empire Online gives it 5 out of 5 stars and concludes,
At once a devastating, curiously uplifting inhuman drama and a superbly crafted genre exercise, Let The Right One In can stand toe-to-toe with Spirit Of The Beehive, Pan's Labyrinth or Orphee. See it.Roger Ebert gives it 3 1/2 out of 4 stars and says,
Remove the vampire elements, and this is the story of two lonely and desperate kids capable of performing dark deeds without apparent emotion. Kids washed up on the shores of despair. The young actors are powerful in draining roles. We care for them more than they care for themselves.Rotten Tomatoes has a critics score of 98%. It won numerous awards.