As for that PG-13 rating, Nolan claims it fits the story he was trying to tell.
We were really trying to take a different approach and achieve intensity in a different way.
Christopher Nolan’s upcoming World War II film Dunkirk made headlines recently when it was officially rated PG-13, and now the director has offered an explanation as to why that is.
I would really like lots of different types of people to get something out of the experience.”