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Project Hail Mary adaptations: books & films
Every version of Project Hail Mary — the books & films, compared across media.
A lone scientist wakes aboard a spaceship with no memory of who he is or why he is there — only to discover he may be humanity's last hope. Project Hail Mary follows Ryland Grace as returning memories reveal a desperate mission to solve the mystery threatening Earth's survival. Andy Weir's 2021 novel and the 2026 film adaptation both center on this same amnesiac awakening in deep space, telling the story across the page and the screen.
Project Hail Mary films
Project Hail Mary books
Frequently asked
Is Project Hail Mary based on a book?
Yes. Project Hail Mary began as a 2021 hard science-fiction novel following Ryland Grace on a solo mission to save Earth. The 2026 film adapts that same story for the screen.
How many versions of Project Hail Mary are there?
There are two versions: the original 2021 novel and the 2026 film adaptation. Both center on Ryland Grace waking in space with no memory and uncovering a desperate mission.
Should I read the book or watch the Project Hail Mary film first?
Either works as a starting point. The 2021 novel Project Hail Mary tells the full story in depth, while the 2026 film Project Hail Mary offers the same premise in a cinematic form — both begin with the same amnesiac awakening.