Michael Caine has signed on to star in Lionsgate U.K. and Marv Films' contemporary British crime thriller Harry Brown.

According to Variety, Caine plays an elderly former serviceman drawn to vigilantism while living in a run-down 'burb rife with gangs, guns and drugs. Emily Mortimer stars as a policewoman.

Harry Brown is directed by Daniel Barber.

"Harry Brown is a modern urban Western that reflects the stark realities of youth crime in the 21st century, both in the U.K. and internationally," producer Kris Thykier said.

No production date has been set.