Kurtis Smejkal’s review published on Letterboxd:
In the four years I've been a film critic, I've never heard such passionate applause during a standing ovation. Only one film has garnered that response from a room full of critics and that's Dunkirk.
This film is amazing on so many levels. I'm not a huge fan of Nolan, but this is without a doubt his best film (I'd say before this his best was The Prestige). The cinematography, score, cast, writing, direction. These are all perfect in every regard.
What I wasn't expecting was the cast, or how unconventional it is. Most movies have a defined protagonist and antagonist, this film doesn't. It's all faces in a war, with each person one piece of a puzzle. They have emotional weight and reason to be invested in them but they are a unified force and I love how this film doesn't just put a noticeable face in that crowd, these guys are as nameless and faceless as you imagine a group of soldiers would be.
There's minimal dialogue in this film, and it works well to do so. Plot is advanced through subtle visual and audible cues. Nolan doesn't pander to his audience, if you're too dumb to not get these cues, you need to be smarter.
This film needs, no, REQUIRES, you to see it in 70mm IMAX. The way this film is made, it's with this format in it's very core and it's going to be a challenge to replicate that feeling again. See it in this format if you're going to see the film.
This is without doubt the best made film of 2017, and one of the best films of the decade. Few filmmakers can make such daring films that utilize traditional filmmaking elements with daring execution in a way that is both familiar and new in all the best ways.