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 "Gweilo"): Cantonese speakers frequently use "gwailou" to refer to Westerners in general use, in a non-derogatory context, although whether this type of usage is offensive is disputed by both Cantonese and Westerners alike.
Relevant evidence: No