Following was shot on weekends over the course of a year. To conserve film stock, each scene in the film was rehearsed extensively to ensure that the first or second take could be used in the final edit.
After Insomnia, Nolan planned a Howard Hughes biographical film starring Jim Carrey. He had written the screenplay, but when he learned that Martin Scorsese was making a Hughes biopic (2004's The Aviator), he reluctantly tabled his script and moved on to other projects.
Christopher Nolan turned down an offer to direct the historical epic Troy (2004)
Nolan started making films with his dad’s Super 8 camera from the age of 7 itself.
Christopher Nolan chose UCL as it had a filmmaking infrastructure comprised of a Steenbeck editing suite and 16mm film cameras.
Christopher Nolan has red and green color blindness.
Christopher Nolan prefers shooting on film stock over digital, and has been outspoken against the threat by studios to phase out the use of film as a choice over digital.
Dunkirk is the first Christopher Nolan movie that's based on a true story. It is also his first war movie. The filming took place in the same location where the real event transpired.
Dunkirk is composer Hans Zimmer's sixth Christopher Nolan film and cinematographer Hoyte van Hoytema's second (after Interstellar). It's also the fifth collaboration between actor Cillian Murphy and Nolan.
Christopher Nolan is known for his regular collaborations with actors like Cillian Murphy, Michael Caine and Christian Bale. Interestingly, Dunkirk is the first Nolan film since Insomnia (2002) which doesn't feature Michael Caine.