Well I never saw 28 Weeks Later but I did see it's predecessor and I thought it was good. But anyways if you want a really good Zombie Film then just watch Shaun of the Dead, it is the greatest! It's got blood, guts, romance, comedy, action and Bill Nighy (who is one of my most favorite actors) all wrapped into one movie! Another zombie comedy that is set in a stereotypical 1950's TV wonderland where the families get along, they all have outdated moral values and everyone believes the Russians are evil, unholy bastards that should be wiped off the face of the Earth with our Nuclear Bombs. Ahem. Anyways Zombies come to town and begin their feasting but the townspeople defeat them and end up demestocating the Zombies like Dogs or Cats. But that's all I know about this movie...I wish I could remember it's name though.