...90 minutes of jolly giant ogre mayhem with writer/director André Øvredal doing everything he can to keep the film's otherwise low budget leanings from showing through. It doesn't always work, but when it does, it's a terrific bit of mythic monster magic.
—Bill Gibron filmcritic.com
...an enormously entertaining chiller...
—Peter Debruge Variety
You'll want to catch this clever movie before Hollywood ruins everything with a dumb remake.
—Lou Lumenick New York Post
—David Rooney Hollywood Reporter
At 1 hour 43 minutes, the film is about 20 percent too long, and there are more traveling shots through car windows of the fjord-land scenery than are absolutely necessary.
—Mike Hale New York Times
...has neither the wit, nor art, nor social insight to honor the legacy of George A. Romero's Martin.
—Nick Pinkerton Village Voice
Almost lost in all the shaky-cam shots of trees and roads is a funny performance by Jespersen, playing a man who takes his responsibilities seriously, but still yearns for reinforcements. He's a star who deserves a real movie, not just the occasional sharp line between scene after scene of young people driving.
—Noel Murray Onion AV Club
...an amiable but weightless mockumentary that traverses the rural landscapes of Norway in search of the rock-scarfing, Christian-blood-chugging creatures.
—Chris Cabin Slant Magazine