Need to watch this again. The anachronistic narrative discourse really tests your memory and observational skills. You feel for Lenny once you figure out what really happens but you also can't condone his insatiable desire for revenge. Memorable lines: "How am I suppose to heal if I can't feel time? - Lenny. & "Test this, you fucking quack" - Jimmy G I
Form and content go wonderfully together. I am still not sure what happened :-) but the implication is clear and the mood slowly shifts, beautifully. The fact that I am not clear what happened is also the congruence of form and content. It's not that original, the forward-backward thing. Check out Iain M Banks's "Use of Weapons". https://www.theguardian.com/books/2012/jul/20/book-club-use-of-weapons-iain-m-banks
The ingenious idea of telling a story backwards and a leading character with a short-term memory span makes what is an ordinary thriller have a breath of fresh air and becoming a lot more special than had it been played straight-forward. A perfect example how to do a tired story fresh again.
Memento has one of the most unique narratives ever created. It starts with a photo developing backwards and then tells its story in reverse chronology. The color sequences play backwards and black and white scenes play forward. This is to create a feeling similar to that of the main character, we and Leonard can't remember what took place before the present. This also allows for the surprise revelation at the end.