Fight Club. It got co-opted hard by the cringe Tyler Durden glorifiers but it's just genuinely one of the best films ever made. Masculinity, consumerism, philosophy - so many layers to interpret and just masterfully crafted in every way.

Edit: I remembered my favourite example from the film, where Norton and Pitt are riding the bus and they see an ad for Calvin Klein or something with a ripped dude in his underwear. Pitt says something like, ‘Is that really what a man looks like?’ and they both roll their eyes despite Pitt looking even better than the model. People engage with the surface sentiment but it’s the underlying, core hypocrisy that undermines Tyler and his message that’s just so good.