Id give it a 4.5 and maybe thats too much but I very much enjoyed the movie. Very few inconsistencies and those dont even really matter. Its gripping and very entertaining. The suspense will keep you craving for more and the main characters are realistic and fleshed out. I agree with other people in the beginning scene there was no need to see cock and balls of which couldve been easily covered up. And him walking through the city while entertaining didnt quite make sense considering the actual scale of the contagion. Where are all the bodies or zombies for that matter? He was walking for a while why did he choose the direction and why did he only carry a bag of soda. Its London, he must have passed a dozen stores. And how did Mark manage to even get bit?
Id gladly watch it again despite these issues. I also learned it was a small budget film which makes it more interesting. I also love the soundtrack.