Naomi Watts (King Kong) has been cast as the female lead in David Cronenberg's London thriller Eastern Promises for Focus Features and BBC Films, according to Variety.

The film will start shooting in November, right after Watts finishes filming on Michael Haneke's remake of his own psycho-drama Funny Games. Eastern Promises, written by Steve Knight, delves into the same seedy underside of London life that he explored in Dirty Pretty Things.

Watts will play Anna, a midwife at a London hospital who gets dragged into the criminal underworld when she tries to discover the identity of a dead patient.

Viggo Mortensen is set to play the mysterious and ruthless Nikolai, a man with links to one of London's most notorious organized crime families. His carefully maintained existence is thrown into turmoil when he crosses paths with Anna.