Oscar-winning director Roman Polanksi (The Pianist) teams up with author-screenwriter Robert Harris (Enigma) for this twisty political thriller. Ewan McGregor plays an unnamed ghostwriter who signs on to pen the memoirs of former British prime minister Adam Lang (Pierce Brosnan). The money is good, but there's a catch: the ghost's predecessor perished under mysterious circumstances (his body washed up on the shore in an apparent suicide). Being the adventurous sort, the ghost puts that information aside and travels to Lang's austere compound on Martha's Vineyard, where he meets Lang's efficient personal secretary, Amelia (Kim Cattrall, good but for an inconsistent accent), and acerbic wife, Ruth (An Education's Olivia Williams). Just as he's wading through Lang's dull text, the PM's ex-cabinet minister accuses him of handing over suspected terrorists to the CIA, fully aware that torture would be on the agenda. The next thing the ghost knows, he's working for a possible war criminal, and the deeper he digs, the more convinced he becomes that Lang is lying about his past. After exchanging a few words with a sharp-eyed old man (Eli Wallach) and a tight-lipped professor (Tom Wilkinson), he realizes his life may also be at risk. Then, while Lang hits the road to proclaim his innocence, the ghost gets to know Ruth better--much better. If the conclusion feels a little glib, Polanksi tightens the screws with skill, McGregor enjoys his best role in years, and Williams proves she's fully prepared to carry a movie of her own. --Kathleen C. Fennessy