EXCLUSIVE: Emboldened by its summer smash Inception, Warner Bros continues to be aggressive in bringing in “big idea” material. Studio has just acquired Expulsion, a spec script by Gregg Hurwitz. It’s the template for a big science fiction film. After an act of terror destroys Earth, a small band of survivors escape to a planet beyond the solar system. Brad Weston is the producer.

CAA reps the writer, a novelist whose thriller They’re Watching is being developed by David Dobkin and Jeff Kleeman. He was also a consulting producer on the ABC series V. Deal comes as Warner Bros continues to navigate Gravity, the Alfonso Cuaron-directed space movie that has Robert Downey Jr. but is still struggling to lock in the actress who occupies the screen by herself for much of the movie.