You're going to hate me for this, but this movie is "meh".
Acting was passable, but action was lacking. Not a lot of shooting. Lots of parts I didn't find very believable, especially the extremely poor marksmanship by the enemy.
If you think you will like this film, you probably will. I doubt you'll love it though. In my opinion it'll be short lived, not the kind of movie you would want to see over and over. If you liked Dunkirk, you'll probably like this. I didn't care for Dunkirk.
It will tug at the ol' heartstrings, so be prepared.
Nothing in this film screams see this on the big screen. It would have nearly the same impact on a 50' TV.
My recommendation is, if you like the movie experience, see it in the movie theater. If not, wait for the rental.