Director Lynn Shelton at the Sundance Film Festival in 2014. - Danny Moloshok / AP / SIPA

American director Lynn Shelton, who popularized the mumblecore genre with comedies like Humpday and My Best Friend, her sister and I, died on Friday of a blood disease at the age of 54, reports Variety.

If this filmmaker was discovered with her low-budget films causing sensation at the Sundance Film Festival, but she became known to the general public through her work for television by directing episodes of numerous series like The Mindy Project , Mad Men, Glow and Fresh Off the Boat .

View this post on Instagram

I'm so devastated to hear about Lynn Shelton's passing yesterday. I'm in complete shock that this vibrant, talented, and soulful filmmaker is no longer with us. Lynn was so passionate about our show, Little Fires Everywhere. She said the book truly spoke to her, and that she longed to direct a show that spoke meaningfully about motherhood, sexuality, race, and class in America. And she did. She cared deeply about the WHOLE cast and crew, making sure we all felt heard, seen and appreciated. Lynn also shared so much of her life with us. Her love of her son, how motherhood changed her life, her life changing decisions that made her the woman she was. I feel so fortunate that I got to collaborate with Lynn on both The Morning Show and Little Fires Everywhere. Her spirit touched so many people in the filmmaking world. Her memory lives on in our vivid days together on set and in her wonderful films. Please watch her work and see her talent for yourself. #RestInPeaceLynn 🙏🏻💫💜

A post shared by Reese Witherspoon (@reesewitherspoon) on May 16, 2020 at 2:19 pm PDT

Lynn Shelton notably directed the first four episodes of Little Fires Everywhere , an adaptation of the 2017 bestseller by Celeste Ng with Reese Witherspoon and Kerry Washington, mini-series recently put online on Hulu in the United States and expected in France this Friday on Amazon Prime Video.

Reese Witherspoon "devastated"

On Instagram, Reese Witherspoon says she is "devastated" and "completely shocked that this filmmaker full of life, talented and so expressive is no longer with us". "She cared deeply about the entire cast and the team, ensuring that we all felt heard, seen and appreciated," continues the actress.

Lynn Shelton was married to actor Kevin Seal. The couple had a son, Milo. Lynn Shelton was in a relationship with the actor Marc Maron at the time of his death.

Series

The 20 most anticipated new American series of 2020

Television

Reese Witherspoon and Kerry Washington meet in a series

  • Cinema
  • Series
  • Disappearance
  • Mad men