Bryan Espitia’s review published on Letterboxd:
This is the second film I've watched in 70mm, The Hateful Eight being the first. Hell of an experience. Can't tell you how much I enjoy the whole film experience. Especially nowadays when it's become increasingly rare, it feels special to watch it this way.
Dunkirk is an intense film. Nolan uses sound to his advantage here, where silence turns to chaos in an instant. This film is LOUD. Gunshots sound terrifying, explosions are thunderous, and enemy aircraft has never been scarier. That horrifying shriek when they descend from the sky will give you chills. Also, dialogue is sparse. It's there, but there were stretches were I was surprised at how little people talked. I do have a slight nitpick, in that the dialogue was at times difficult to understand. It sounded like it was mixed fairly low. I've read similar complaints from other people, so I don't think it was just my theater.
Speaking of complaints, I noticed some people had issues with the characters. I can understand that. I'd agree that I didn't necessarily feel a strong emotional connection to most of the characters. But maybe that was the point? It feels more like we're just along for the ride, experiencing all of these things with the soldiers, rather than getting attached to them. It was a slight issue for me as well, and it's something I'll keep in mind when I eventually rewatch it.
Dunkirk demands to be seen on the big screen. Even if you can't find a way to watch it in 70mm or IMAX or whatever, it is more than worth the trip to the theater.