Park Entertainmentand Intense Productions have started principal photography on announce thatprincipal photography on Underground.

The action featureis set in the UK suburbs, where anunderground tournament pits a dozen fighters against each other. The cast includesmartial arts expert Mark Strange, kickboxing champion Nathan Lewis and stuntveteran Leon Sua.

Chee Keong Cheung is writing, directing and producing. Strangeis also producing.

Mike Leeder is executive producing.

The shoot will continue until the end ofAugust on location in Lancashireand London and delivery is expected in December.

Park Entertainment's Jim Howell said: "Chee and his team have already proved to us thatthey can stage terrific fight sequences but as the shoot has progressed you cansee that the film is much more than this. You really start to identify withparticular fighters - it could almost be a film version of a new reality show FightingIdol!"