Don't know much about the video game, so don't how much material there is for a film... But Scott Derrickson (Sinister, The Exorcism of Emily Rose) will direct the screen adaptation.

http://www.cbsfilms.com/news/scott_d...nic_video_game

Set in the near future, when dramatic advances in science, specifically human augmentation, have triggered a technological renaissance, Deus Ex: Human Revolution follows Adam Jensen, an ex-SWAT security specialist who must embrace mechanical augments in order to unravel a global conspiracy.

"Deus Ex is a phenomenal cyberpunk game with soul and intelligence,” said Derrickson, who continued, “By combining amazing action and tension with big, philosophical ideas, Deus Ex is smart, ballsy, and will make one hell of a movie. Cargill and I can't wait to bring it to the big screen."

The Deus Ex franchise was originally introduced in June 2000. Its latest entry, Deus Ex: Human Revolution, launched to universal acclaim in 2011, ranking #1 across global sales charts and earning over 100 industry awards. Developed by Eidos-Montréal and published by Square Enix, Deus Ex: Human Revolution will serve as the primary template for the film.