The story is actually very short, but the producers extend it into a near 2-hour movie. You'll see the struggle of many people trying to leave Dunkirk with very few interactions between the characters. The acting of each character is just average. There's no real star performances. Most importantly, the essence of the story is just plain and simple. Everything is just predictable and the action scenes are just average at best. I kind of felt very sleepy from the middle of the movie.

The only thing that make people give this a high rating is because they are all hypnotized by the sound effect. Google it and find out that the sound effect they used, really does have a psychological effect on its viewers. It keeps them intense throughout the entire movie.

So guys, it's NOT a good movie, but a proved fantastic hypnotizing mechanism.