Most of us long to finally get off our butts, lose some weight, and get healthy. But then the pizza delivery arrives and we go back to sitting on the couch, and those dreams evaporate, as you down your fourth slice while watching whatever the latest buzz-worthy show on Netflix. But what if we actually put on those barely-worn sneakers, stepped outside, and made a go at it? Herein lies the charming narrative of Brittany Runs a Marathon; a film you'll likely assume you've seen dozens of times before...