"There is a lot of low-budget ingenuity on show here from the use of night-vision – which naturally makes everyone look like a demon – to Pete Renton’s low-key and ominously rumbling music track. Indeed, the sound design of the film is immensely important and I strongly recommend that you watch the film on high volume... The Dolby Digital 5.1 soundtrack is absolutely splendid throughout with atmospheric action from the surrounds and the omnipresent low rumble coming across particularly well." - The Digital Fix