30 Days of Night director David Slade has just signed on to replace Tarsem Singh in Momentum Pictures' thriller Unthinkable. According to Variety, the project is being produced by ChubbCo Film Co. and Patriot Pictures.

Unthinkable is a thrilling drama that centers around a group of investigators who decide to push the limits of interrogation as they seek a suspect's knowledge of an impending nuclear attack on the United States. Peter Woodward and Oren Moverman wrote the script.

Unthinkable is scheduled to start filming this summer.