Robert Kirkman has conquered comics and he has taken television by storm with The Walking Dead. Now he is setting his sights on movies.

Kirkman is producing Air, a sci-fi thriller to which Norman Reedus, one of the breakout actors on Walking Dead, and Djimon Hounsou have signed on to topline, The Hollywood Reporter has learned exclusively. Sony Pictures Worldwide Acquisitions is in final negotiations to acquire the project.

Christian Cantamessa, the video game hot shot who co-wrote and was the lead designer for games such as Red Dead Redemption and Grand Theft Auto: San Andreas, wrote the script with Chris Pasetto and will make his feature directorial debut with the low-budget pic.

The story is set in an underground cryogenic facility after a nuclear fall-out renders the atmosphere unbreathable. Air centers on its two custodial workers (Reedus, Hounsou) who take care of the cryogenically sleeping personnel that are to re-establish society but they struggle to preserve their own sanity and lives while maintaining the extremely fragile environment of the last livable place on earth.