Project Hail Mary will begin streaming exclusively on MGM+ on June 18, the studio announced, meaning viewers who want to watch the film as soon as it leaves the paid window will need access to MGM+ rather than Prime Video, Netflix, Hulu or Peacock.
The film, produced and distributed by MGM, reached digital platforms about a month before its MGM+ debut after a 90-day theatrical window. Project Hail Mary, directed and produced by Phil Lord and Christopher Miller and based on an Andy Weir novel, stars Ryan Gosling and grossed almost $700 million worldwide, making it the third-highest grossing movie of 2026 with more than $678 million.
Those are the concrete dates and figures to note: June 18 is the MGM+ exclusive start date; the digital release preceded that by roughly a month; and the streaming window follows the film’s 90-day run in theaters. The studio also positioned MGM+ as the pay-one service in the film’s release sequence, with PVOD and traditional theatrical windows completed before the streamer debut.
What is not on the schedule for June 18 is equally important. Despite MGM’s role as the film’s producer and distributor and MGM’s ownership by Amazon, Project Hail Mary will not debut on Prime Video on June 18. The studio has confirmed the title will eventually move to Prime Video, but no date for that transfer has been provided.
The decision places Project Hail Mary in the same pay-one pattern that other recent MGM releases followed. The Oscar-winning American Fiction also ran through full windows with a pay-one on MGM+. By contrast, other Amazon‑owned releases have used different timing: Red One had a 26-day exclusive theatrical window-to-Prime, Air moved to Prime after a 37-day window, and Saltburn followed a 35-day theatrical-to-Prime timetable. Those examples illustrate the variability in how MGM and Amazon titles reach Prime Video.
For viewers, the immediate practical takeaway is simple: access on June 18 requires MGM+. For release tracking, the key unresolved item is when the film will arrive on Prime Video. MGM’s release sequence confirms an eventual move to Prime Video, but the company has not tied that transfer to a calendar date.
Project Hail Mary’s commercial performance and full-window strategy matter to that timing. The film’s near-$700 million global haul and its placement as one of 2026’s top earners strengthen MGM’s ability to run a full theatrical and PVOD cadence before pay-one streaming. Still, without a stated Prime Video date, subscribers who rely solely on Prime will not have immediate access when the MGM+ exclusivity begins.
The clearest next step for viewers and industry watchers is the missing date: MGM+ will host the film starting June 18, and MGM has said Project Hail Mary will go to Prime Video at a later time, but when remains unspecified. Anyone who wants to watch the film on the first streaming day should plan for MGM+, and anyone waiting for a Prime Video arrival will have to wait for the studio to announce that later window.
For context on Gosling’s filmography and recent project moves, see Ryan Gosling Movies: Gosling Exits Daniels’ Untitled Sci‑Fi as Matt Damon Steps In.
