The movie “Hail Mary” (the 2023 film listed on IMDb) has a runtime of about 1 hour 40 minutes (100 minutes).

Because “Hail Mary” is also close in name to “Project Hail Mary,” some listings and news talk about a much longer sci‑fi movie runtime (around 2 hours 36 minutes), but that longer runtime refers to “Project Hail Mary,” not “Hail Mary” (2023). For your specific question, if you’re looking at the film simply titled “Hail Mary” (2023), plan for roughly an hour and forty minutes.