Goofs

When Jim is walking through London,the clock on Big Ben says 8:15. In the next shot, it says 6:40.

While escaping the military-guarded location, Jim is wearing a green shirt and his hands are bound. After scaling the wall and dropping to the other side, his shirt has been caught on the razor wire atop the wall, but his hands are still bound.

During dinner, when the infected set off a tripwire outside the perimeter, Maj. West is wearing his 'Blues', No.2 dress. Immediately after the action, when he is explaining to Jim about giving his men women, he's changed into his DPM smock (battledress).

In one scene Jim is shown with many bruises after shaving without any water. In the next, all the bruises are gone.

In the night sequences at the mansion, despite torrential rain, thunder and lightning, a full moon is seen shining brightly in a clear sky over the mansion.

When the main characters are leaving London, they stop off at the super market for food. When inside the store, it is clearly illuminated by artificial lighting. There is meant to be no power in the city. Strangely when they leave there is a shot of the outside, which clearly shows the shop in complete darkness.

When Major West and the unit he belonged to were deployed to the original motorway barricade, or whatever mission they were initially assigned, chances are, with the speed and haste that the infection spread among the population and masses, they were probably deployed immediately with their camouflaged field uniforms they were currently wearing and all the necessary equipment, NBC gear, weapons, ammunition, explosives, that they could carry. Yet we see him at the dinner in his dress uniform. It would be highly unlikely that he would have put that dress uniform in his equipment kit bag or backpack, which each individual soldier either hand carries a carries over his back.

Major West's SA80 fires many more rounds than would likely be in the magazine. Most hand-held weapons give less than a minute of fire before they need to be reloaded. The standard mag. on a SA80 holds 30 rounds.

Rage can spread from human to animal or animal to human, by biting, or infected blood landing in the victims mouth, eyes, or nose. The movie has no infected dogs or birds of prey. The virus may require a host closely related to humans, like the chimps from which the outbreak originally began. This is reinforced when the film shows uninfected horses.

The recording about the "answer to infection" mentions the M602, 26 miles outside of Manchester. The UK uses Imperial measurements for distances, so the use of "miles" is correct.

About eleven minutes in, someone walks up a distant sidewalk. Since Jim is calling out for someone, that person would've heard Jim, or Jim would've seen him. Clearly, the person is not part of the movie.

After leaving the hospital, when Jim stands at the bottom of steps at the junction of Carlton House Terrace and Waterloo place, someone is walking down the hill on the right.

In a shot across the deserted Westminster Bridge, the traffic lights at the junction of Bridge Street and Victoria Embankment are red. However, the national power grid has been shut down.

At around an hour twenty-seven seconds as Jim and his friends are driving down the highway, there's a car ahead of them in the distance.

Around 1:01, as the protagonists are approaching ruins of Manchester, there is an explosion in the city that's still at least ten kilometers away. First there is a muffled bang, and only then the flames of explosion itself are seen. Sound waves travel at a speed of around 340 meters per second, so it would take at least half a minute for the sound of the explosion to reach the protagonists from that distance.

Although Maj. West is wearing the correct rank insignia (one crown) on his 'Blues', when he dresses for dinner, he's not wearing epaulettes on his DPM smock showing the same.

When the group stops to get gas at a roadside diner Jim walks inside and finds several dead people at the counter. How did they die? They show no signs of being infected and don't look like they were attacked and killed, and being in a diner, they didn't starve to death.

At the end of the movie, fighter pilot speaks at first English but then turns to speak in Finnish.

After waking up after taking Valium and camping out all night the first thing Jim would do would be to take a leak be he doesn't he just jumps in the vehicle and they drive off.

The Access credit card used had been defunct since the mid-1990s.

The aircraft seen at the end of the movie is a Folland Gnat with Finnish markings. However, Finnish Gnats were retired since 1972.

After Jim has escaped his captors, Cpl. Mitchell tells his oppo. that Jim has no vehicle, and 'no shooter'. No British soldier would ever refer to any small arm as a 'shooter'. A weapon, a rifle, even a bang-stick, but never a shooter.

When the taxi is slowly going down the motorway approaching the outskirts of Manchester, you can see the blue motorway signs on the left, the white painted line on the shoulders, the streetlights in the middle of the motorway, and the gray overhang across the motorway they are just about to pass under, all bouncing around as if it's some type of CGI overlay that is unsteady.

When the camera pulls back to show Manchester aflame, a row of flashing lights is visible in the distance. It's the police keeping traffic back so that the road looks empty. About 2 seconds later, a car drives by in the distance.

During the first shot of Centre Point at Tottenham Court Road and Oxford Street, on the left side of the screen, a man can be seen changing the bags of a dustbin to the right of the stationary lorry.

Frank drives his taxi through the Blackwall Tunnel because "it's the most direct route to the other side of the river." They start on the north side of the river and head north toward Manchester. Going through the Blackwall Tunnel would actually take them south.

On the radio broadcast about the location of the blockade, it says it is on the M602, north-east of Manchester. But the M602 only runs west of Manchester.

The blockade is supposed to be situated North East of Manchester. Yet during the scene when Jim escapes back to it, the signs read Blackpool and Fleetwood, and also shows signs for Lancaster and the Lake District. These signs are only seen on the M6, running to the West of Manchester.

Since the zombies in this movie aren't undead, or - presumably - physiologically altered in any significant way (the writers have said that they liked the idea of a plague that altered people psychologically instead), their metabolism must be more or less that of a normal person. Hence, they would die of thirst in a few days especially given the fact that they projectile vomit liters of blood at the time, or, if they drink, starve to death in a few more - especially since it doesn't seem that they eat who they kill, or much of anything else (we see no half-eaten corpses or anything like that, groceries are left untouched etc.).

The common trope of the zombies being undead with a craving for brains (or human flesh) is notably and deliberately averted in this film, pinning the reason for the devastation on the rage virus which turns people into violently aggressive killers - but this opens up a considerable plot hole: Why don't the rage victims kill each other? "Normal" zombies don't because the undead kill the living but the rage-infected seem to act more like a dog in the final stage of rabies, attacking anything that moves and/or makes noise - the infected have no reason not to attack each other.

The beginning of the movie explains that the Rage Virus makes people lose a lot of blood. When Jim is walking around the destroyed hospital and streets, there is no blood anywhere.

When Jim and the 3 others go into the Budgens grocery store to pick up supplies before they leave London, after 28 days, the smell of the inside of the grocery store would have been so repulsive, if not on the verge of a bio-hazard in itself, due to all the rotting, fermenting and decomposing milk, dairy, fish, poultry and meats, that as soon as they walked into the store would have, at the very least, make their faces wince at the stench and at the very most would have made them turn around and leave the store immediately due to the intolerable and unventilated pungent odor.

Jim becomes a hospital patient in a coma following a bicycle accident. Shortly into his stay, rage-infected zombies would have attacked all the patients before moving out from the hospital. One could assume that Jim would have been attacked, but clearly steps were taken to hide him as much as possible (blinds closed, door locked with key on the floor on his side). Although Jim has an IV bag connected to his arm, any fluid nourishment would be depleted from the bag within a few hours, at the most. Even without being attacked by roving hordes of infected, two weeks or more without nourishment would cause death by dehydration and starvation.

A soldier radios in "I repeat". In UK signals, "repeat" is reserved for artillery fire. He should've said "I say again".

At 33 minutes when in the tower block stair-well Serena shouts "Quiet, there's infected"- giving away their position as the Infected would not previously have been able to hear them, as they were whispering.

When they're on the roof checking if it rained and they collected water, there's a dirty-clothes basket full of holes which would be useless to collect rain water.

Private Bell tells Jim he is out of bullets as he runs out the window. Soldiers are trained to call it ammunition, or ammo.