Even if not flawless, he believes the adaptation delivers entertainment, emotional resonance, humor, spectacle, and modern filmmaking techniques.

The film shifts from hard science to character and relationships, making it accessible to a general audience while retaining a classic sci‑fi vibe with modern production quality.

Brandon Sanderson situates his assessment of Project Hail Mary within his broader screenwriting ambitions, noting his ongoing work adapting Mistborn for Apple.

Sanderson notes the film’s structure is less tight than the book’s, with stretches lingering or speeding through key payoffs, a common adaptation tradeoff.

Release details include a March 15, 2026 release, a 157‑minute runtime, directors Miller and Lord, writers Goddard and Weir, and a cast led by Ryan Gosling with Rocky voiced by James Ortiz.

Sanderson says he loved Andy Weir’s 2021 novel and that it’s one of his favorite books in the last two decades, highlighting a strong connection to the source material.

The film focuses more on Rocky, the alien sidekick, and on human relationships, which Sanderson views as a strength of the adaptation.

Sanderson publicly praised the film as “Fantastic,” awarding it a perfect 10/10 after watching the movie and calling it a top-tier adaptation.

In a spoiler-divided two-part YouTube review, he reiterates the 10/10 rating and lauds it as a top-tier adaptation.

Beyond this film, he expresses a desire for more high-quality science fiction cinema and hopes for future Hollywood genre projects like Artemis.

Project Hail Mary has shown strong box office performance, becoming Amazon’s biggest release with over $510 million worldwide on a $200 million budget.

He notes the adaptation is a little less scientific to appeal to broader audiences, though the ending feels rushed and some development scenes could have been allotted more time.