Author Peter O'Brien has sold his spec script Unlocked to Warner Bros. According to Variety, Lorenzo di Bonaventura and Georgina Townsley are set to produce the movie.

The plot revolves around a female CIA interrogator who becomes unwillingly involved in a devastating biological attack on London after being tricked into allowing a terrorist to divulge information to the enemy. Peter O'Brien wrote the screenplay back in 2007, and it quickly wound up on the 2008 Black List of top unproduced screenplays.

RELATED: First Look at Noomi Rapace in Unlocked

No production date has been set at this time, and no actors or director are attached to the project.