Attack the Block

Both funny and scary, with a bit of social commentary.

Beautifully photographed and directed with judicious use of special effects. Thankfully the alien monsters were "man in a suit"/puppet, with little CGI. CGI cannot imitate the real fluidity of movements.

A lot of apparently ad lib dialogs, just the type I like.

It is just the kind of movie that has you screaming and laughing simultaneously.