'Project Hail Mary's Adaptation Makes Some Massive Changes From the Great Sci-Fi Book

Few book-to-movie adaptations nowadays are as good as Project Hail Mary. The Phil Lord and Christopher Miller flick is deeply faithful to the original Andy Weir novel, making it hard to point out which one is actually better, so we'll take both and be happy about it. Still, there are always some key differences between the media, usually because of budget or time limitations, narrative constraints, or even the visual medium itself. Project Hail Mary does have its fair share of those, of course, either toning down some of the darker aspects of the novel or heightening some of the more emotional ones.