I want to practice my listening comprehension and build on my grammar and vocab.

I find cinema a good way to do this with as it full of dialog by native German speakers talking a normal real life speeds, and if I get really stuck I can turn on subtitles.

The things I'm looking for:

 * Dialoge that is clear and close to high german or at least isn't full of strong regional dialect
 * It is teaches something about German life or culture that would be good (eg Goodbye Lenin)
 * I'd I'll also prefer films that enjoyable to watch as in their own right

Does anyone have any recommendations for movies that learners will find beneficial?