Lost Girls is a 2020 American mystery drama film. Lost Girls was directed by Liz Garbus, from a screenplay by Michael Werwie, and based on the book Lost Girls: An Unsolved American Mystery by Robert Kolker. The film revolves around the murders of young female sex workers on the South Shore barrier islands of Long Island, committed by the Long Island serial killer, who remains unidentified. Lost Girls stars Amy Ryan as the real life activist Mari Gilbert, along with Thomasin McKenzie, Lola Kirke, Oona Laurence, Dean Winters, Miriam Shor, Reed Birney, Kevin Corrigan, and Gabriel Byrne. The film premiered at the Sundance Film Festival on January 28, 2020, and was later released on March 13, 2020, by Netflix.

Lost Girls
Official poster
Directed by	Liz Garbus
Produced by	Anne Carey Kevin McCormick
Written by	Michael Werwie
Based on	Lost Girls: An Unsolved American Mysteryby Robert Kolker
Starring	Amy Ryan Thomasin McKenzie Lola Kirke Oona Laurence Dean Winters Miriam Shor Reed Birney Kevin Corrigan Gabriel Byrne
Cinematography	Igor Martinovic
Edited by	Camilla Toniolo
Productioncompanies	Archer Gray Langley Park Productions
Distributed by	Netflix
Release date	January 28, 2020 (2020-01-28) (Sundance) March 13, 2020 (2020-03-13) (United States)
Running time	95 minutes[1]
Country	United States
Language	English