Possibly one of the weakest Marshall films. He drew his influence from many science fiction films such as Mad Max, 28 Days Later, Omegaman, etc. Some parts worked well, some parts didn't. I enjoyed the fights and costumes but to see Scottish people regress to Feudal society was a bit silly. I like how realistic (in terms of the setting of the film) it was but it failed to present a well sounded narrative.
The film has a somewhat promising beginning, with its chilling shots of the deserted streets of Scotland, and its representation of a government unwilling to help those in need. It also creates a disturbing portrayal of the remaining population, showing their descent from humanity into barbarity, murder and cannibalism. However, director Neil Marshall injudiciously pushes these elements of the plot to one side, making room for a monotonous string of car chases and battle sequences, hindered further by Marshall's poor dialogue read by a collection of flimsy actors, save for Bob Hoskins and Craig Conway who give fine performances.
One should not dismiss the film entirely, as the plot is interesting, and there is a handful of scenes that make the film interesting. It's just a shame that Marshall allowed his Hollywood action-flick notions to get the better of him, resulting in a film that fails to accommodate its great potential.