Instruct: Classify the given review into positive or negative sentiment.
Query: Sobering view of the American Dream

This is an excellent film that depicts America's dependence on fossil fuels and the concept of peak oil that Shell geologist M. King Hubbert put forth in the 50s. My only qualm with this film is that it does not give much insight into how we deal with this problem. However, I have heard a rumor that a sequel might be released that addresses this very question!