Clint Eastwood is bringing the non-fiction book "The 15:17 to Paris: The True Story of a Terrorist, a Train, and Three American Heroes" to the big screen.

The Hollywood Reporter said Dorothy Blyskal adapted the bestseller as a screenplay for Warner Bros., while the Oscar-winning filmmaker will direct and produce.

Eastwood is expected to begin casting soon with an eye to start production later this year, said.

WB also released Eastwood's recent hits "Sully" and "American Sniper," which were both about extraordinary, real-life Americans, as well.

"15:17" is the story of how three men thwarted a possible terrorist attack on a train from Brussels to Paris in 2015.