Agreed; another great review Cas, and a great film to boot. It's quite a few years since I watched it but it's great piece of film-making. I think I prefer the Before... films and I still only have those on DVD! Do I love Boyhood enough to justify £20 or £30 on upgrading from my blu ray of it? Not sure, but I'm glad there's a great 4K version available.
Watched this release the other night. Excellent movie - top transfer. I’d recommend this edition as the book makes an excellent companion piece for such a unique movie.