Brittany Fogler is an interesting, lovely, 27-year-old New Yorker whose urgent life makes her a mess, and her dirty nightclub adventures and shameful early morning walks make her late for work every day. But when she stopped at a place called the recommended doctor's office to try to give her medication, Brittany got a series of diagnoses instead of an elevated heart rate and blood pressure. A long list of diseases. Suddenly, Brittany was forced to clench, fasten her Converse sneakers and run a lump of sweat. The next day, she ran twice. Soon she ran a mile. Brittany finally had a direction, but did she go the right way? Award-winning playwright Paul Dens Corraizo directed his directing career for the first time with this bright and lively comedy, while Gillian Bell injected his heart and soul into Brittany's story with an irresistible cast. Brittany runs a marathon is an interesting and inspiring film about how a woman famous for her party life finds real friends and real life by controlling herself, running one block at a time.