I think this blogpost contains spoilers, but it’s very hard to tell.
Christopher Nolan’s new film is notoriously complex, or perhaps just convoluted. I say that because although I wasn’t always ready to answer probing questions on either the plot or the physics that propelled it, I was fascinated by Tenet’s central use of the simplest, and most effective weapon in the filmmaker’s arsenal: the rewind.
Film is a time-based medium, which is always played forwards but can be recorded backwards. And at the heart of Tenet, this is all there is: film moving backwards and forwards. This being a Nolan blockbuster, we know it was actually shot on film, which makes it extra satisfying. Tenet calls the rewind “negative entropy” and so would you if you were making a multimillion-dollar movie.
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