10 More Epic Movie Moments You Won't Believe Didn't Use CGI

Returning to the practical world of Christopher Nolan now, and to that time when the world class director decided he didn't want to use CGI planes or green screens to create the riveting dogfights eventually seen in his 2017 WWII epic Dunkirk.

Instead, the decision was made to mount an IMAX camera onto the wing of a Yak-52, two-seater Soviet-era plane (via USA Today), dress that up so that it looked just like a Spitfire, have that soar up into the air and very much capture the reactions of the likes of Tom Hardy and Jack Lowden's Spitfire pilots.

The crew would extensively rehearse the aerial sequences on the ground before both the actor involved and aerial coordinator Craig Hosking would get up in the sky to shoot a no-doubt terrifying half-hour sortie.

Nolan would even add that most of the Spitfire action seen in the finished flick was actually done by the real working WWII planes, too, as these aircraft were in "incredible condition" and able to do all of the dogfighting and acrobatics necessary for the flick.

In order to capture those moments of the genuine Spitfires speeding through the sky, a Piper Aerostar was fitted with an IMAX camera on the front and back and sent up with them, with this view throwing the audience right into the middle of these spectacular and realistic dogfight sequences.