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The DVD says:

At the height of the terror of WW1, the few survivors of an English regiment, trapped behind enemy lines, take refuge in a deserted German trench, waiting to be rescued. But when no help arrives, one by one they begin to suffer mysterious and gruesome fates. Slowly, a terror beyond all human understanding is unleashed. Is the trench possessed by something even more terrible than the war that surrounds them or does some other unknown evil wait to claim them all?

Running Time: 91 mins

Region: 2

Ratio: 2.35:1

Sound: Dolby Digital 5.1

Special Features: 3 Feature Commentaries, Featurette, Deleted/Alternate Scenes, Trailer, Behind The Scenes Footage, Cast & Crew Interviews.

Certificate: 15

My Opinion:

Very atmospheric movie which will have you on edge most of the way through. The only let down is a disappointing ending which suddenly produces some dreadful special effects and leaves you going thinking - huh? The DVD has some great extras, but the 3 feature commentaries could be seen as extreme! Must be watched with surround sound as you'll feel you're in the middle of battle.