Ben Affleck Signs on to Direct and Star in World War II Film 'Ghost Army'

Ben Affleck is keeping busy.

Affleck, 46, is set to direct and star in the upcoming World War II film Ghost Army, according to Variety.

The film, based on the book The Ghost Army of World War II and the documentary Ghost Army, follows a group of recruits tasked with tricking the Nazis into believing the United States had larger troops and stronger defense mechanisms than it actually did.

Affleck will also rework the script before the film begins production.

The film marks Affleck’s first directorial effort in nearly three years. He last stepped behind the camera for the 2016 gangster film Live By Night. He was most recently seen acting in the action-thriller Triple Frontier.

Along with diving into work, Affleck has been adjusting to his newly single life. Last month, the actor and on-off girlfriend Lindsay Shookus called it quits a couple months after reconciling.

A source told PEOPLE that living in different cities was a factor in their breakup.

“She has a kid and an ex-husband and a job in New York and Ben has his family and a job in L.A. and while they love and respect each other they just realized it wasn’t going to work,” the source said. “They really gave it another solid try.”

“They will always have love for each other,” the source added.

This was the second time Affleck, 46, and Shookus, 38, have separated. The two first made their relationship public when they were spotted grabbing dinner in July 2017 and split in late August 2018 just before the actor entered rehab.

He shares three children with his ex-wife (and PEOPLE’s 2019 Beautiful Issue cover star!) Jennifer Garner.