The Ghost Writer (released as The Ghost in the United Kingdom and Ireland) is a 2010 British political thriller film directed by Roman Polanski. The film is an adaptation of a Robert Harris novel, The Ghost, with the screenplay written by Polanski and Harris. It stars Ewan McGregor, Pierce Brosnan, Kim Cattrall and Olivia Williams. Wikipedia
The Ghost: I'd never guess you smoked. Amelia Bly: I only allow myself one. In times of great stress or contentment. The Ghost: Which is this? Amelia Bly: Very funny.