Author Brandon Sanderson has advocated for reading Andy Weir's novel "Project Hail Mary," even for those who have already seen the film adaptation. Sanderson, whose recent podcast discussions have frequently touched on book-to-screen adaptations, noted that the book offers a more detailed exploration of the science and problem-solving aspects central to the story.

"They left out a lot of the science, the try fails, the figuring out how everything works," Sanderson explained on his podcast. He elaborated that the initial revelation of the protagonist being on a spaceship is more drawn out in the book, allowing readers to experience the confusion and discovery alongside the character. This immersive quality, he suggests, is a key differentiator between the novel and its cinematic counterpart.

Despite his preference for the book's depth, Sanderson expressed satisfaction with the film adaptation, stating that "they did a fantastic job." IGN's review similarly praised the movie as a "rollicking sci-fi blockbuster" that faithfully adapts Weir's novel, celebrating themes of science, teamwork, and bravery. The review, however, did note some pacing issues stemming from the novel's structure, ultimately deeming the partnership between characters Grace and Rocky as the film's core success.

For readers who, like Sanderson, experienced the story in book form first, the differences are significant. Books can delve into the intricate scientific details and character introspection that a limited film runtime cannot fully accommodate. Weir's writing style, which guides readers through detailed processes, is a particular strength that translates best to the novel format, allowing for a deeper understanding of the character's journey and the challenges they face.

Beyond the print version, "Project Hail Mary" is also recommended as an audiobook. Narrator Ray Porter's performance, complemented by sound design, is highlighted as an excellent way to experience the story, making it an accessible transition for those accustomed to the movie.