I haven't heard much about "Quarantine", so I didn't expect much. I finally watched it and I was pleasantly surprised on how good it was.
It is all shot from the perspective of a News cameraman who was doing a story on firefighters. They all end up going to an apartment building where their services are needed and authorities lock them inside to contain a virus. A serious case of rabies has caused people to go insane.
The film was really a zombie movie inside a contained area where no one can leave. When someone tries to leave, police snipers kill them. This makes the film very scary. You know there is no way for anyone to survive. You want them to find a way, but the reality is they will die.
The acting in the film was good, but Jennifer Carpenter, who is also on "Dexter", overacts for some of the film. She is good in the beginning, but when all hope of surviving is thrown out the window, she just overreacts beyond any sort of realism. It got kind of annoying.
"Quarantine" is a remake of a foreign film called "[.REC]". I haven't seen that one so I can't say which one is better, but this remake is very good. It was was much better than a similar type movie: "Paranormal Activity". Eh... That movie still bugs me. Watch "Quarantine" instead.
B I recommend it.