The trailer for Roman Polanski’s upcoming political thriller The Ghost Writer debuted yesterday. Based on the Robert Harris novel The Ghost, it stars Ewan McGregor as a ghost writer for a recently unseated British prime minister (a thinly-disguised Tony Blair in the form of Pierce Brosnan), who is putting together his memoirs. When McGregor stumbles upon secrets that threaten to put the PM in a bad light, and thus his own life in danger, he wavers between keeping his job and doing the right thing.