“Project Hail Mary,” starring Ryan Gosling and directed by Lord and Miller, will begin streaming on MGM+ on June 18 after a 90-day theatrical window. It will not debut exclusively on Prime Video first, and the studio says the decision reflects different greenl
Ryan Gosling’s space-race drama isn’t disappearing from theaters quietly—it’s simply moving to MGM+.
Amazon MGM Studios says “Project Hail Mary” will be available to stream on June 18, following a 90-day theatrical window. The timing matters to viewers who have watched the theatrical calendar get crowded in recent years. and it lands after the film’s strong box-office performance: the movie is currently the third-highest grossing film of 2026. with more than $678M worldwide.
The bigger twist for many fans is where it will stream first. Although the film is part of Amazon’s broader ecosystem, “Project Hail Mary” will not be available exclusively on Prime Video at launch. Instead, it will eventually go to Prime Video, but the initial streaming home is sister service MGM+.
Studios have a way of making these release patterns sound clinical. and Amazon MGM Studios is framing this one as a “horses for courses” business decision spanning streaming and theatrical operations. The studio says different titles are handled under different greenlight models inside the Amazon MGM system.
In this case, “Project Hail Mary” went through full windows, including PVOD, with MGM+ being the pay-one. “American Fiction” is named as another example of a title that also went through full windows with a pay-one on MGM+.
By contrast, films that move from theatrical to Prime Video are greenlit differently, according to the studio’s description. The budgets for those projects are often covered by Prime and monetized under a different internal model.
Those Prime Video greenlights come with their own logic: if the studio believes a film has theatrical potential—and can recoup marketing costs through a theatrical release—it receives that model. The studio points to “Red One” as an example of a film with a 26-day exclusive theatrical window-to-Prime. “Air” at 37 days. and “Saltburn” at 35 days.
The release planning is unfolding as Amazon MGM Studios also ramps up its slate. The studio has just opened the $170M Mattel Studios and Escape Artists feature “Masters of the Universe,” which it says is running a global box office total of $60M+ in its first five days.
Taken together, the sequencing makes the studio’s philosophy harder to dismiss: a 90-day theatrical run can still end at MGM+, while the path to Prime Video depends on how a film was greenlit and funded—down to whether it is treated as pay-one or built around a Prime-first model.
For now, the message is straightforward for viewers: if they want “Project Hail Mary” on a streaming screen before it reaches Prime Video, MGM+ starts the countdown on June 18.
Project Hail Mary MGM+ Prime Video Ryan Gosling Lord and Miller Andy Weir streaming date 90-day theatrical window Amazon MGM Studios