Big Fan (2009)
Big Fan is a 2009 independent drama film written and directed by Robert D. Siegel, and starring Patton Oswalt, Kevin Corrigan, Marcia Jean Kurtz, Michael Rapaport, and Scott Ferrall. The story revolves around the bleak yet amiable life of the self-described "world’s biggest New York Giants fan", Paul Aufiero (Oswalt). Big Fan garnered positive reviews at the 2009 Sundance Film Festival. The film had a limited release in the United States beginning on August 28, 2009.
More at Wikipedia.