Audio problem: In the scene where Doyle, Scarlett and the kids jump into the Volvo estate to escape the gas and infected, a number of references are made to the car having a manual gearbox, i.e. "pop the clutch". Doyle puts the car into second gear and several shots of the gear lever are shown. However, when Doyle push starts the car and they drive off, listen carefully and you will hear the distinct sound of the gear change of an automatic box.
Suggested correction: If you listen even more carefully, you can hear the tyres squealing, which does not match the tread shown in some scenes.
Factual error: This film takes place 24 weeks after the film "28 Days Later", which is approximately 6 months later. Yet in both films it's the middle of Summer.
Suggested correction: Many scenes feature yellow trees or trees without leaves, and it's cold outside, so it feels more like late autumn than midsummer.
Visible crew/equipment: When Jeremy Renner is pushing the car, a cameraman is visible behind him to his right. (01:20:10)
Suggested correction: If you watch the film sober, you might notice that in this scene there is a simple trash can next to Doyle.
Continuity mistake: After Don escapes from the house at the beginning of the film, the infected are right behind him. He manages to escape in the boat but when the following shots show the river, there is no sign of any bodies or blood (despite one infected being killed by the boats propeller) or any disturbances on the surface apart from waves being caused by the boat. There is no chance that the infected could have all gotten out of the river so quick (including the dead infected body) without leaving so much as a splash. (00:10:35)
Suggested correction: It is implied that Don managed to swim around the bend, so there is no pier from which he swam; the infected remained at the pier.
