It was decent but nothing close to Saving Private Ryan.
http://observer.com/2017/07/dunkirk-review-christopher-nolan/ a decent review from this critic
because he does address Nolan's style of film making. Sometimes it works like Interstellar and sometimes
it's a mess. I think the way he jumps from story to story during the movie is a bit excessive and usually
I'm a fan of Nolan's work in other movies. The critic was correct about dialogue and even in a non-Imax
theater it's hard to hear the dialogue from the actors.

I wouldn't have had a problem with the way he flips from story to story and how he weaves them together if he'd
just have given a date and time stamp, because some of it is weird at first until you realize what he's doing. I know
some fans love it because they think it makes them seem smart but in reality it takes away from the story because
for a short time you are wondering, "What the heck, why is it night and now day, then night again", instead of
concentrating on the story he's telling.

I'm much more excited for the Churchill movie coming out in November.