The Frost/Nixon actor will also star in the movie, which is based on Dark Horse Entertainment’s graphic novel Green River Killer: A True Detective Story by Jeff Jensen, according to The Hollywood Reporter.

The story centres on Jensen's father, Tom, who spent 20 years looking for so-called Green River Killer Gary Ridgway, who he eventually caught.

QC Entertainment will produce and finance the film, and Sheen revealed on Friday (24Jun16) he's looking forward to bringing the story to life on the big screen.

"This is a dark story but one that ultimately finds hope and meaning in that darkness,” the Welsh actor explains. “The story of Tom and Gary and how they are bound together in time pulled me in from the beginning and wouldn’t let go. I hope that by now bringing it to life on screen it can make audiences feel the same way."

Sheen, who is currently dating comedienne Sarah Silverman, has a busy year ahead - he stars in the Oppenheimer Strategies opposite Richard Gere, and the eagerly-anticipated sci-fi thriller Passengers, which co-stars Jennifer Lawrence and Chris Pratt.

At least Sheen can ensure he won't be on the cutting room floor in his directorial debut, as he's still reeling from the news his appearance in the new Finding Nemo sequel was axed.

"I got a phone call saying I'm not in that (Finding Dory) anymore, they cut me out," he said back in March (16). "Unbelievable. I was very sad, I was such a fan of Finding Nemo, but that's the way it goes, especially with animated films, you never know what's going to make it to the final cut... It's always a good thing to remember - you can always end up on the cutting room floor."