Alex Garland has this to say about the possibility, or lack thereof, of 28 Months Later
(the sequel to 28 Days and Weeks Later) ever happening:
I'll answer that completely honestly. When we made '28 Days Later,' the rights were frozen between a group of people who are no longer talking to each other. And so, the film is never going to happen unless those people start talking to each other again. There is no script as far as I'm aware.
Which 'group of people' is he talking about, exactly? And what is the problem that is making them not talk to each other?