For once a film that I can pretty much unreservedly recommend. Spanish thing called Platform. Interesting idea in which loads of people live in a vertical prison, each cell containing two prisoners with some above and some below. Once a day a platform containing a load of food is lowered from the top to the bottom, stopping for two minutes on each floor allowing the people there to eat, and then carrying on to the bottom... great if you're near the top, but if you're near the bottom then all the food is gone by the time the platform reaches you so you have to either starve or eat your cell-mate. Every thirty days they shake up the order and you get put on a new floor. And that's it in a way - and I said pretty much recommend cos, yeah, the allegory is kinda heavy handed, the society of people above (sometimes literally) pissing and shitting on those below - but somehow it stays tense and interesting pretty much to the end. Partly I guess cos of the way it makes you realise how high the stakes are from the start, injecting a feeling of genuine tension to every bloody moment. And yeah it is bloody, it's incredibly violent, gory, nasty whatever... so not for the faint-hearted I supposed, but I pretty much recommend it to you lot.