I seem to have accidentally written dialogue about the Capgras delusion for the 2008 psychological horror film The Broken.
The therapist in this clip says “Have you ever heard about the Capgras syndrome? It’s a rare disorder in which a person holds a belief that an acquaintance, usually a close family member or spouse has been replaced by an identical looking imposter.”
This is taken from the Wikipedia entry for the Capgras delusion, the first sentence of which I wrote in the first version way back in 2003.
The film, by the way, is excellent with a fantastic twist ending, although it stops at what I thought was perhaps the most interesting part when the character realises the truth and attempts to comprehend what this means about herself.
Anyway, my next project is to get a line from the schizophrenia article into a Madonna song.
Wish me luck.