Development Director and co-writer James Gray had originally met co-writer Ethan Gross while attending the
USC School of Cinematic Arts together in the late 1980s. In June 2007, Gross contacted Gray, pitching the idea of a sci-fi film inspired by
2001: A Space Odyssey (1968). The two worked on the story intermittently, referring to it initially as
Lima Project. On February 21, 2013, Gray and Gross would pitch the concept to producers
Rodrigo Teixeira and Sophie Mas of RT Pictures at
Babbo, an Italian restaurant in
Manhattan. After Teixeira and Mas agreed to finance the screenwriting process, Gray and Gross would submit several drafts between November 29, 2013, and May 22, 2015, partly to solicit feedback from producers and colleagues: some of the changes made in this period included changing the character of John Gates, a father figure to main character Roy McBride, to Roy's actual father, before further rewriting the story so that the father was killed while in a cryogenic state, rather than in an active confrontation in earlier drafts. In addition, the story had originally been set on Saturn, but the release of
Interstellar (2014) caused the setting to be moved to Neptune to draw more of a distinction between the two films. Gray first confirmed his plans to write and direct
Ad Astra on May12, 2016, during the
2016 Cannes Film Festival. Six months later, Gray would consult theoretical physicist
Lawrence Krauss to assist in improving the film's scientific accuracy: one major change that resulted from this was the removal of a plot point regarding
antimatter being found on Neptune.
Casting In August 2016, while Gray was screening
The Lost City of Z to producer Brad Pitt, the former had a conversation with the latter to discuss
Ad Astra. Pitt expressed interest and agreed to both star in and co-produce the film; In August, Ruth Negga, John Finn, and Donald Sutherland joined the cast.
Filming Principal photography on the film began on August 10, 2017 in
Santa Clarita, California, lasting 60 days. After initial post-production work, test screenings were held on May 30 and July 18, 2018; Gray did not have control over the film's final cut, which he told
The Hollywood Reporter was "as painful a thing as I have experienced outside the death of a loved one." The visual effects were by
Moving Picture Company,
Method Studios, Mr. X,
Weta Digital, Brainstorm Digital, and Capital T, and supervised by Allen Maris, Christopher Downs,
Guillaume Rocheron, Ryan Tudhope, Aidan Fraser, Olaf Wendt,
Anders Langlands, Eran Dinur, Jamie Hallett, and
Territory Studio.
Max Richter composed the film's score and recorded it at
AIR Studios in
London. Additionally,
Lorne Balfe was asked to write additional music for the score. The orchestra and choir were then recorded at
Synchron Stage Vienna. James Gray consulted with experimental film scholars Gregory Zinman and Leo Goldsmith for inspiration on the visuals. The film's post-production was completed August 7, 2019, when Pitt recorded the rewritten voice-over dialogue.
Music The film's soundtrack was composed by
Max Richter with additional music contributed by
Lorne Balfe and
Nils Frahm. The album was nominated for a Grammy Award for Best Score Soundtrack for Visual Media. ==Release==