Los Angeles: Gerard Butler is set to star as a rough former FBI agent in the movie adaptation of 'The Bricklayer', written by Noah Boyd.

Millennium Films has acquired the rights to the book, written by former FBI agent Noah Boyd.

Butler's character is called in to help battle a criminal group that is demanding multi-million dollar ransom payments in the movie, a report said.

Hanna Weg (Enigma) is adapting the novel for the screen. Butler, Alan Siegel and Danielle Robinson are producing, with Erik Lindsay and Weg serving as executive producers.

The Bricklayer was published by William Morrow in January, 2010. Boyd is actually a pseudonym used by former FBI agent Paul Lindsay.

In the book, his main character, Steve Vail, is a former FBI agent, working as a Chicago bricklayer, whom the agency reaches out to help track down and combat the criminal gang.

The plot also involves a female deputy director at the FBI who is assigned to work with Vail – a part that that has not yet been cast.