22 July is a 2018 American drama film about the 2011 Norway attacks and the aftermath of it, based on the book One of Us: The Story of a Massacre in Norway -- and Its Aftermath by Asne Seierstad. The film was written, directed and produced by Paul Greengrass and features a Norwegian cast and crew. The film had its world premiere on September 5, 2018 in the main competition section of the 75th Venice International Film Festival. It was released online and in select theaters on October 10, 2018, by Netflix.

What's the best answer to this question: is the movie july 22 a true story?
yes