I didn't really think that an original, unique war movie could be made anymore. We've seen SO many, and a large number have attained masterpiece status. Heck, my favorite film of all time is THE THIN RED LINE.
But Nolan accomplishes something great here - simultaneously understated and in-your-face, DUNKIRK is an experience more than anything else. It's incredibly immersive and manages to convey the hellish reality of war without gruesome images of carnage.
This is so different than anything Nolan has done before, and yet it bears his signature prominently. It really needs to be seen on the big screen - don't miss out.