Nolan is a staunch advocate for the , and Tenet was filmed using 70mm IMAX cameras.

(John David Washington), participates in a covert mission to retrieve a strange artifact during a staged terrorist attack. After rescuing a fellow agent and being tortured by Ukrainians, he swallows a cyanide pill to avoid talking. However, the pill is a test—it’s a fake. He wakes up to find he passed, proving he is willing to die for the mission. He is recruited into a top-secret organization called 2. The Science of Inversion

These devices serve as the literal gateways between forward and backward movement.