Tenet (2020)

 "We are being attacked from the future."

This is one of those Christopher Nolan films that are a massive puzzle box, like Inception and The Prestige, if not quite as good as those two. How much you enjoy these types of film depends on whetheryou like a film to be a puzzle box, in this case a big timey-wimey palindrome thingy. 

Confession time: yes, I understood the broad nature of the plot, but I immediately went on to watch a YouTube video to so I understood it... well, "fully" is an awfully strong word. Again, there will be those who, understandably,don't fancy the idea of a fil that takes effort, and even multiple viewings,to work out what's going on,especially if said film happens to be two and a half hours long.

It's worty it, though. This film is extraordinary, and it's a shame how a certain spiky virus sort of sabotaged it at the box office, although admittedly that's hardly the worst of the many sins of said virus.

The central concept is fantastic- inversion of entropy, meaning that an object or person can be "inverted", moving backwards through time instead of forwards. Hence, there's a lot of time travel in this film, but you have to live through events in real time, whether forwards or backwards. There are great concepts arising from this, such as the "temporal pincer movement" and the rather clever little time paradoxes around the characters, and particularly around the true nature of John David Washington's Protagonist. The fact he's known only as that is a clue.

It's not all that, of course. There's humour. There's Kenneth Branagh being superb as an evil (is there any other kind?) Russian oligarch. There's a chilling yet tasteful exploration of domestic abuse. There's a delightful cameo from old Michael Caine. This film is a joy.