Five years after jilting his pregnant fiancée on their wedding day, out-of-shape Dennis decides to run a marathon to win her back.
Not streaming on a subscription service in the US right now.
Starring Simon Pegg, Thandiwe Newton, Hank Azaria, Dylan Moran, Harish Patel, India de Beaufort, Matthew Fenton, Simon Day, Ruth Sheen, Nevan Finegan