Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Reality or Hallucination?

For most of this movie, I thought it was quite an interesting situation and it was quite captivating. Then, suddenly, it started an ending that left both my wife and me utterly confused and feeling we'd wasted our time watching the film. It seems that the movie makers couldn't tell the difference between reality and hallucinations any more than the apparent patients could.