The studio has barely begun the process of developing the movie; Nolan is in postproduction on “Inception,” but is hammering out a story with David Goyer.

There is no title as this point and no start date.

July is becoming Nolan’s month. “The Dark Knight” opened on July 18, 2008, and “Inception” debuts July 16.

With Batman 3 on the docket, summer 2012 is shaping up to be one of the greater geek movie seasons. Marvel’s “The Avengers” is slated to come out May 4, board game adaptation “Battleship” leaves port May 25, the “Star Trek” sequel beams up June 29, and the rebooted “Spider-Man” swings into theaters on July 3.