The wide array of visually stimulating sequences in Project Hail Mary almost featured an Oppenheimer-esque scene that involved bombing Antarctica with nuclear weapons. In a recent interview, Andy Weir, who authored the original book and co-produced the movie adaptation, revealed that he pushed hard to include the said nuke scene from the novel, only for the Project Hail Mary makers to cut it.

Andy Weir wanted Project Hail Mary to feature book’s nuke scene

During his recent appearance on a podcast, the 53-year-old author confirmed that his book had a scene where scientists launched nuclear bombs in Antarctica to save the planet. However, the Project Hail Mary team ultimately decided to cut this scene due to the film’s unusually long runtime.

Calling it his “only regret” with the adaptation, Andy Weir stated on StarTalk that he and movie’s screenplay writer Drew Goddard “fought” hard to retain the sequence. “[We] both wanted this once scene, and we just didn’t have time for it because the runtime was going so long,” he remarked.

Weir then explained the book sequence in question, stating, “There’s a scene in the book where they nuke Antarctica on Earth. They set off a bunch of nuclear explosions in Antarctica to make an entire ice shelf fall into the ocean so that it will melt and release all the methane, which is greenhouse gases, so that Earth will retain more of the heat that it is getting from the Sun…So, they’re like, ‘We need some global warming.'”

While Project Hail Mary creators may have decided to cut the nuke scene, they did engineer certain moments that are missing from the source material. For instance, Andy Weir’s novel neither has the protagonist teaching children on Rocky’s planet nor snapshots of a dystopian version of Earth with frozen oceans.

Talking about said unfortunate developments on the planet, Weir said, “We see the beginnings of it in the book. They’re starting to have problems, and a lot of their problems are caused by the amelioration techniques they’re proactively doing. Things are going to get worse, but then we’re gonna need that heat.”

Released on March 20, 2026, Project Hail Mary is currently running in theaters.