O Baile dos Bombeiros

It's a pretty funny and witty slapstick comedy, until you realize that you're laughing at the objectification of women and the corruptness of bureaucracy. So, in that sense, it's a pretty sly sociopolitical commentary. So sly, in fact, that you don't even notice it in the film. You've got to read up on it to figure out what Forman was making fun of, and even then he denies any meaning behind the humour. The non-actors and natural dialogue add to the absurdity of the situations, and the end's got a similar sharp veer towards tragedy as One Flew Over the Cuckoo's Nest. In fact, the humour in both films is the same, as what you're laughing at really shouldn't be that funny at all, but it is. Overall, this is a light but deep (if that makes any sense) product of the Czechoslovak New Wave, and it's definitely worth a watch.