6. Silence of the Lambs (1992)
Ok, so it's not technically a prison, but I had nightmares for quite some time after seeing Baltimore State Hospital for the Criminally Insane. Firstly, it looks like someone bought Adam West's Batcave, blocked up all the toilets and merged with with a caravan park. Then there's the delightful inmates who are either hurling awfully rude insults at your ears or, if you're really lucky, even more awfully-er rude body secretions at your eyes. And then there's the giant glass fronts. Lovely for filming an over-acting Anthony Hopkins of course, but effectively making it look like the prisoners are about to just step out, whack you over the head with the metal chair you get to sit on, and eat your liver with a nice bottle of Blue Nun and a pack of dry-roasted nuts (the original script said that, rather than chianti and fava beans, I believe). I tell you, this one not only put me off being an insane criminal genuis, it also ended my plans to become a brilliant FBI detective. That and the fact I was 16 and living in Devon at the time.