Big Fan stands as a profound and thoroughly remarkable character study marked by a magnetic performance of Patton Oswalt. He excels as Paul Aufiero, a life-long fan of New York Giants being brutally hit by one of Giants' top players in a strip club. Oswalt is equally sympathetic and believable starring as this deeply troubled character. His performance is the chief, but thankfully not the only reason to see Big Fan. Writer-director Robert Siegel regards the sports fanaticism as an addiction and that gives his film the necessary gravitas: its power and its credibility. The script is devoid of clichés with many well-observed situations thrown in and several ingenious twists you won't see coming. As a result, you observe Paul falling into decay with great anxiety combined with care. Siegel crafts a subversive comedy, funny and bleak in equal measures. It also works as a peculiar take on the pathology of sports mania.