It's every adolescent's fantasy: meet a fascinating, remarkably pale member of the opposite sex, fall in love, then realize that he or she is a full-on, blood-guzzling vampire.

At least one has to assume this is a pretty common young adult fixation considering the nearly back-to-back DVD arrivals of the massively popular "Twilight," on DVD and Blu-ray this Saturday, and "Let the Right One In," a critically acclaimed but little seen Swedish film — released March 10 on DVD and Blu-ray — that sinks its teeth into similar narrative territory.

"Twilight," the first movie based on Stephenie Meyer's enormously popular, Harlequin-esque series of vamp novels, has the more buzz of the two releases. The Twilighters — a passionate, borderline obsessive group of fans who, it should be noted, do include some individuals over the age of 14 — will undoubtedly clamor to get their hands on a copy of the special-edition DVD when it goes on sale with midnight release parties today.

As directed by Catherine Hardwicke ("Thirteen"), the film stays pretty faithful to the book and, as such, plays at times like a cross between "Buffy the Vampire Slayer" and a John Hughes teen flick. Which is not necessarily a bad thing.

But viewers who have never dipped a toe into one of Meyer's texts may find themselves plagued by questions of the more traditional vampire-movie variety. ("Why isn't anyone breaking out some garlic? Can't that Edward dude turn into a bat? When do Corey Haim and Corey Feldman show up with the holy water?")

Keep this in mind: "Twilight" is not "Dracula." It's more "Romeo and Juliet, if Shakespeare Shopped at Hot Topic."

The DVD and Blu-ray releases come with a respectable helping of extras, which clearly aim to please those aforementioned devotees. But not all the pieces succeed.

The seven-part documentary "The Adventure Begins: The Journey From Page to Screen" spends too much of its 54-minute running time allowing cast members to explain character motivations that are already patently obvious to anyone who has seen the movie or read the novel.

The doc fares better when it reveals the mysteries behind the onscreen magic of, say, the baseball scene, which we see come to life with some grueling wire work and the tossing of Christmas ornaments, which sub in for the subsequently added CGI baseballs.