The letter was signed by Paul Thomas Anderson, Damien Chazelle, Alfonso Cuarón, Guillermo del Toro, Leonardo DiCaprio, James Gray, Alejandro González Iñárritu, Barry Jenkins, Rian Johnson, Christopher Nolan, Barbra Streisand, and others.

[11] Four days after the letter was released, WarnerMedia and Criterion announced that The Criterion Channel would launch as a standalone service in Spring 2019, with a smaller version of the service also being available via HBO Max, then WarnerMedia's upcoming streaming platform when it launched on May 27, 2020 until it slightly rebranded as Max in May 23, 2023.

Factory, and Warner Bros.[13] FilmStruck organized films in themed collections, while the Criterion Channel had original content such as their "Meet the Filmmaker" and "Adventures in Moviegoing" series, five-minute micro-lectures, as well as thematic programming like Friday double features and Tuesday short and feature film pairings.

[8][14] In early 2018, FilmStruck announced it had acquired hundreds of classic film titles from the Warner Bros. library, including Casablanca, Citizen Kane, and Singin' in the Rain.

[15] The Verge praised the availability of "best films ever made", while criticizing the catalog search functionality in July 2017.