It's Assault on Precinct 13 meets the The Thing (Can we count the ways director John Carpenter has influenced genre films today?).
Clearly inspired by the better films of John Carpenter (The Thing, Assault on Precinct 13), 30 Days of Night also draws deep from a pool of influences that includes Richard Matheson's seminal vampire novel I Am Legend, and George Romero's Night of the Living Dead.
30 Days.. is a wonderfully underplayed, character driven horror film that contains a visually rich setting (which makes sense considering its source material) and a biting atmosphere, with its isolated winter backdrop reminiscent of John Carpenter’s horror classic The Thing .
Like John Carpenter's The Thing, which it evokes, 30 Days boasts an atmospheric and chilling sound design.
The template here is John Carpenter's The Thing, whose icy shadows provide ample inspiration (and which might make an intriguing double feature with this film for those so inclined).