Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A great big disappointment

The critics panned this movie, but the premise interested me so much that I just had to see it. I was largely disappointed. Heather Graham was lovely and stylish as usual, and Robert Downey Jr. was wacky and weird as usual, but that wasn't enough to carry the film. The ending left me thinking, "What was the point?" This movie is not worth buying, or even renting.