Mate how did you not get the movie keeps cutting between 3 different timelines it's explained in the opening 5 minutes??
Also the movie is noted for using actual WW2 vehicles and planes.
The civilian boat they used for the sea timeline was built in 1930.
The planes are completely remodelled WW2 RAF spitfires.
The movie was so realistic I felt I was actually there at times.
Incredible movie I expect it to sweep the Oscars and go down as a modern masterpiece.
I didn't mention the vehicles or planes.
I didn't mention the civilian boat.
I did mention the architecture and cranes.
I did mention the train carriage.
I did mention the battle ships.
I did mention the weather.
There was 300,000 evacuated, the film did not have 300,000 on the beach.
Anachronisms
The film shows several vehicles of a later second world war type. Understandably, period vehicles are difficult to come by, the vast majority having been left behind at the time.
The Luftwaffe did not start painting fighter aircraft nose cones yellow until later in 1940. However Christopher Nolan has admitted this was done deliberately to make the German aircraft easier to identify by the audience.
Modern port unloading cranes in sweeping shots looking inland, including when the plane glides down the beach to a landing.
The railway carriages in the final scenes date from the 1950s and have seat patterns from the 1980s.
There are two instances when the German Heinkel He-111 comes under attack by a British Supermarine Spitfire. Both times, the Heinkel sounds like it fires cannons in its defense. The Heinkel He-111 H-3 variant, the one used during the time period, did not have cannons as defensive armament. It was armed with MG 17 Machine Guns as defensive armament.
During the scenes shot in Weymouth on a couple of occasions you can see the top of the Weymouth "Sealife Tower" which was built circa 2012.
On a few occasions the cranes of the container terminal and chimneys of the Arcelor Mittal plant in the modern day port of Dunkirk are clearly visible in the background.
Modern road signs and road markings can be seen in Weymouth.
The Dunkirk promenade shows modern lamp posts with new lighting, which would not have been around in 1940.
The Luftwaffe (German Air Force) fighter aircraft used during the time of the events at Dunkirk would most likely be the Messerschmitt Bf 109E. The plane used in the movie is a Hispano Aviación HA-1112, which is a Spanish variant of the Bf-109 introduced after the war, powered by the Rolls-Royce Merlin engine, like the Spitfire. HA-1112 are commonly used as substitutes for Bf 109s as they are almost identical in appearance save for the HA-1112's less-streamlined cowling.
When the airplane is on the beach, there are two quick shots of the sand dunes, behind which modern container cranes can be seen jutting high into the air.
In the background of many shots of Kenneth Branagh at the end of the Mole pier, a large blue and green warehouse can be clearly seen - not a 1940s building in construction.
In the first scene, while running through the street, one of the houses on the right has a modern day aluminum frame on the facade.
In the background of the scenes on the beach giant "modern" post 1970 container cranes can be clearly seen. These giant walkers were developed in the 1980s to facilitate removal of shipping containers and did not exist in 1940. They appear in the background of many scenes including the climatic final scene.
Double glazed train windows and container cranes in Dunkirk port.
When the Spitfire is shown landed on the beach, ship-to-shore container cranes are visible in the background above the sand dunes. This type of crane first came into use in the 1950's.
http://www.imdb.com/title/tt5013056/trivia?tab=gf&ref_=tt_trv_gfNot realistic.