Jeremy Crabb’s review published on Letterboxd:
Just to get this out of the way, the movie is VERY different from the book. I love both the book and this movie, but they are quite different, as the story takes a much different direction in the movie than in the book. There are definitely things they keep, and what keep, I loved. I liked a good bit of the changes and was quite pleased with most. There are some things I would've liked to see in this movie, but I'm judging this as a movie fan, not just as a fan of the book.
Steven Spielberg has crafted one of his best films with Ready Player One. There, I said it. While it may not be as good in quality as a lot of his movies, it's one of my personal favorites from his extensive library of amazing movies.
It's an absolute ton of fun, and it blends the live-action and CG scenes seamlessly, and it was very impressive. The characters are also very charming, as is the romance and the comedy, which are both equally handled with great care; and as for the references, they're all absolutely perfect. They are never thrust into the foreground and they never compromise the story or characters, and they work as a great tool rather than a hindrance to the plot. There is one particular horror-related scene that is a surprisingly big part of the plot, but it is one of the coolest and funniest references in movie history, and it is one of the most entertaining scenes of the year so far. This movie also has both a phenomenal score and soundtrack.
As for problems, they're definitely there. There are some elements of the plot that do feel a tad rushed, and it could've maybe been about 10 minutes shorter, just to even out the pacing a bit more. Any other problems I have with this movie are just things that I would've liked to see from the book, but those don't count as problems because I'm reviewing this as a movie, and as a movie, it's great and I loved it.
Overall, Ready Player One is a breezy, incredibly fun, and very well-made blockbuster from the master, Steven Spielberg, and I truly think he has crafted one of his best films here. Many will disagree with me, and that's fine, but I think more will come around to this movie in later years. Or maybe I'm wrong, and I'm just blindly loving this movie. I don't know, but I'm going to go with the former on that one.