Question: The 2006 film directed by Nick Broomfield, known as Ghosts is named in reference to which Cantonese slang term for Westerners or "ghost man"?
Sentence (from "Ghosts (2006 film)"): Ghosts is a 2006 drama film directed by Nick Broomfield, based on the 2004 Morecambe Bay cockling disaster.
Relevant evidence: Yes