Hilarious, outgoing and always up for a good time, New Yorker Brittany Forgler (Jillian Bell) is everybody's best friend, except maybe her own. At 27, her hard-partying ways, chronic underemployment and toxic relationships are catching up with her, but when she stops by a new doctor's office to try to score some Adderall, she gets slapped with a prescription she never wanted: Get healthy. Too broke for a gym and too proud to ask for help, Brit is at a loss, until her seemingly together neighbour Catherine (Michaela Watkins) pushes her to lace up her Converse sneakers and run one sweaty block. The next day, she runs two. And soon, after finishing her first mile, she sets an almost unthinkable goal: running in the New York City Marathon.

otsoNY Comments: Jillian Bell lost 40 pounds during the filming of the movie, just like her character does during the course of the film.

otsoNY Comments: Alice Lee is an American actress and singer. She is also a YouTuber who goes by the name Alice J.

Brittany's Apartment, 383 Myrtle Avenue (btw Clermont and Vanderbilt Avenues) Brooklyn.

Clermont Avenue and Park Avenue, Brooklyn.

Roebling Street and N 4th Street, Brooklyn.

Domino Park, 300 Kent Avenue, Brooklyn.

otsoNY Comments: The cast and crew actually got to film at the New York City Marathon, making this the first time a non-documentary film crew has been allowed to shoot there.

Columbus Circle and Central Park West, Manhattan.