The 1981 John Carpenter film with Kurt Russell. Class on a no-effects-to-speak-of budget. The rather stupid premise (Manhattan Island has become a giant prison which the President accidentally crash-lands in) gains such a lot of atmosphere from its minimal treatment that it becomes something really strange. It's all filmed at night, in urban dereliction just dressed with a bit of burning rubbish and the odd police helicopter, Carpenter's own music sounds as if its been played on an old-style synthesiser with one finger .. and it is creepy, as well as funny. There are always figures running on the edge of the shot, just out of focus. Standout character: John Diehl's punk. Just a bit-part really, he moves like a dancer or an animal, his speech is a feral hiss - he hardly speaks, he has the quality of a predator. And the customised roller with chandeliers. Russell sneers and wears cut-offs in a bad-guy-who-is-really-a-good-guy way. I kept expecting sub-plots: there aren't any. Small but perfect.