The Quirky Website of the Week is a regular feature on this site. Feel free to recommend other quirky websites in the Comments section.
The process of determining which movie to rent might become easier by using the Movie Profiler website. The designers of the site bill Movie Profiler as "a movie search engine that listens to your emotions," deriving information from you through a short questionnaire.
Based upon my answers, the Profiler suggested the films Chinatown, 28 Weeks Later, and The Abyss as films to match my current mood, which I might currently describe as a blend between cynical, phlegmatic, and irritated.