Christopher Nolan is in final negotiations to direct a feature film adaptation of the 1967 television show The Prisoner for Universal Pictures.
The original UK fantasy/drama television series only lasted 17 episodes, but later spun-off into a series of novels, comic books, computer games and role-playing games. Patrick McGoohan played a government agent who has resigned and is kidnapped and placed on an isolated island known as the Village. He's given a new identity -- Number Six -- and interacts with an island staff trying to get him to reveal why he resigned. Throughout the series Number Six tries to escape the island while defying all attempts to break his will.
If Nolan does sign on, production would begin after the Batman Begins sequel - The Dark Knight.
In an interesting but unrelated side note, LOST co-creator and Mission: Impossible III writer/director JJ Abrams has recently praised the series as one of his influences (I'm wondering if he was asked to helm the film?).
"I loved The Prisoner, which was a very odd sort of hybrid of sci-fi, mystery and character, and certainly there are elements of The Prisoner in both Alias and Lost," admitted Abrams. "The prisoner was a guy constantly wondering where the hell he was. And there was some kind of agency that seemed to be in control of his destiny, and that was clearly a theme in Alias."