<P> On June 9, 2016, Variety stated that Spielberg's regular collaborator John Williams was planning on composing the film's score . However, scheduling conflicts with another Spielberg film, The Post, led to Spielberg signing Alan Silvestri for the score . </P> <P> The film stars Tye Sheridan, Olivia Cooke, Ben Mendelsohn, Lena Waithe, Simon Pegg, Hannah John - Kamen and Mark Rylance . It premiered at South by Southwest on March 11, 2018, and was theatrically released by Warner Bros. in the United States on March 29, 2018 . It received generally positive reviews from critics, who praised its visuals and brisk pacing, and noted it an improvement over the book . This film received criticism for its lack of character development and its "achingly regressive" view of pop culture fans . </P>

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