Wilkinson joins Polanski thriller 'Ghost'

Tom Wilkinson and James Belushi have joined the cast of Roman Polanski's thriller The Ghost.

Based on a novel by Robert Harris, the story concerns a former British Prime Minister writing his autobiography on a remote island. When his aide drowns, the ex-PM's ghostwriter unravels a political conspiracy.

Pierce Brosnan, Kim Cattrall, Ewan McGregor and Olivia Williams are already among the cast of the film, which at one time had Nicolas Cage attached to play the ghostwriter.

The Ghost begins production on February 4 in Berlin.