The war blockbuster Dunkirk directed by Christopher Nolan has just been released and has received many compliments from critics.

70mm film is a wide format film, with higher resolution than standard 35mm film.

The difference between 70mm film and 35mm film.

Compared to 35mm film, 70mm film records more sharp points, thereby showing more detailed images.

Dunkirk

`Dunkirk is a movie about World War II and tries to immerse you in that experience. It needs 70mm film to do that. The average audience won’t notice the difference, but feels like they’re entering the world of

Most theaters do not have projectors to play 70mm movies, so they must use 35mm prints with a 2.35:1 ratio or project digital versions.

Existing since the birth of cinema (late 19th century), it was not until around 1950 – 1970 that 70mm film entered its golden age.

Recently, only a few directors still use 70mm film such as Paul Thomas Anderson (The Master), Quentin Tarantino (The Hateful Eight) or Ron Fricke (Samsara).

However, few people support 70mm films as fervently as Christopher Nolan because of his passion for the original values of cinema.

`Dunkirk` was praised for its visuals.

Since The Dark Knight (2008), the director born in 1970 used large format film for some scenes in his work.

According to Variety, Dunkirk was shown in 70mm film format in 125 theaters worldwide – a record high number in the past 25 years.

Behind the scenes of `Dunkirk`

After the impressive debut of Dunkirk, many experts questioned the revival of 70mm film.

The Hollywood Reporter site believes that Dunkirk can create a revival for this old type of movie that is being forgotten in Hollywood.

However, New Atlas commentator Rich Haridy believes that the era of 70mm film is unlikely to return.

`Even though Dunkirk was a successful experiment, it was difficult for other filmmakers to be given this huge budget. This unique experience will not be repeated anytime soon,` Haridy said.

Dunkirk was directed and written by Christopher Nolan, recreating the Allied evacuation from Dunkirk (France) at the beginning of World War II.

In addition to using 70mm film, Nolan also shot most scenes with IMAX cameras for projection on larger screens than usual.