Brittany Runs a Marathon
“You can't rush progress.”
Where to watch in the United States: Stream: Amazon Prime Video, Amazon Prime Video with Ads · Free: Amazon Prime Video Free with Ads, Amazon MX Player. Streaming data from JustWatch via TMDB; availability changes.
Cast
Jillian Bell 
Jennifer Dundas Patch Darragh Alice Lee Erica Hernandez Max Pava
Credits
Written by: 
Paul Downs Colaizzo
Plot
Hilarious and outgoing, Brittany Forgler, is everybody’s best friend ― except her own. Her partying, underemployment and toxic relationships are catching up with her.
Sinekatalog’s take
A party-loving woman begins to run and slowly rebuilds her self-respect. The humour is sharp and the film does not tidy up its heroine, though the structure is familiar. A warm, encouraging comedy-drama for anyone who likes honest self-improvement stories.Sinekatalog’s own editorial review – not a user or critic quote.
Ratings
IMDb: 6.8 / 10 (24,190 votes)
Rotten Tomatoes: 89%
Metacritic: 72/100
IMDb rating and vote count from the IMDb ratings dataset (October 2026). Scores change over time.
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