Brittany (the brilliant Jillian Bell) is nearly 30, has a rubbish job, goes out every night, generally does things she shouldn't. Find film screening times, film runtimes, film synopsis, cast and director and watch the Brittany Runs A Marathon trailer. On Wednesday (which just so happened to be Global Running Day), Amazon Studios released a trailer for the upcoming comedy “Brittany Runs a Marathon,” which hits theaters on August 23. ! Find out where Brittany Runs a Marathon is streaming, if Brittany Runs a Marathon is on Netflix, and get news and updates, on Decider. I’m so excited to be sharing a movie so close to my heart ️ Here’s the official trailer for Brittany Runs A Marathon!!!! After a reality check from her doctor, she enlists to run in the New York Marathon. Is Brittany Runs a Marathon, an Amazon Studios movie that is now streaming on Prime, a perfect movie?No. Winner of the Audience Award at Sundance 2019. 10.6k Followers, 13 Following, 88 Posts - See Instagram photos and videos from Brittany Runs A Marathon (@brittanyrunsmov) I hope every person involved in this endeavor, from the writer-director, to the entire cast, finds great success in the future, but that is trite to say-- they already have a huge success in "Brittany Runs a Marathon", and if they did nothing else (which WON"T be the case), they should take tremendous pride in this gem. Looking to watch Brittany Runs a Marathon? Book tickets to watch Brittany Runs A Marathon at your nearest Vue Cinema.