“Project Hail Mary,” the film adaptation of Andy Weir’s best-selling novel, becomes available to stream on Amazon Prime Video on July 3. The movie has been streaming on MGM+ since June 18, when it made its first streaming debut. The release timing reflects the film’s move from earlier availability on MGM+ to a broader Prime Video rollout less than a month later. Deadline reports the Prime Video launch follows a 105-day theatrical window before streaming, while also noting that MGM+ arrived earlier and corresponded to a shorter window. The film is directed by Phil Lord and Christopher Miller, known for projects including “The Lego Movie” and “Spider-Man: Into the Spider-Verse.” Variety and ComingSoon both point to the July 3 Prime Video date and agree that the film is already on MGM+. Taken together, the outlets describe a staggered streaming schedule that starts on MGM+ first and then expands to Prime Video on July 3.