Apocalypse Now has an 8.4, so has Dune Part Two. Green Mile is at 8.6. I'm sorry, but Project Hail Mary is just not on that level, it's certainly not a better film than Apocalypse Now or Dune 2, on any level. You can disagree on the 'masterpiece' status of those films mentioned, but still. This film was fun and all, but it really doesn't feel like an all-timer at all. Only time will tell of course, but I've had a pretty good track record of feeling where movies' legacies will go over the years pretty early. I honestly don't think people will be talking about this film much in 5 years, it'll be a fun blockbuster to watch now and again, the 4K will probably turn out to be a reference disc for the technical aspects, but that's it. 8.5. is vastly overstating it and I'm sure it will move down to around a 7.9 over time. I'd personally give it a 7 on a good day.