Project Hail Mary is currently listed at 2 hours and 36 minutes , so expect it to be a fairly long theatrical run time rather than a short, brisk movie.

What that means

  • The official runtime includes credits.
  • Some earlier listings showed longer or inconsistent runtimes, but the confirmed figure is 2:36.
  • The film is set to open in theaters on March 20, 2026.

In plain terms

For most audiences, that usually means roughly 2.5 hours in the theater , plus trailers and pre-show ads if you’re planning around showtimes.

Would you like the release date and theater availability as well?