Christopher Guest and Spinal Tap

I just watched Spinal Tap for the third time. (Fifth time if you include the commentary.)

Man, that film goes to eleven! Funniest mockumentary ever made.
Best commentary too, it is done in character, and is easily as funny as the film.
And don't miss the extras, like the full TV-concert clips from the sixties and seventies, hilarious as well as being actually very good pop music.

And if you like that, you should get the Christopher Guest collection.
OK, maybe it is not the slam dunk Spinal Tap was, but what is? These are more understated. But I just watched them all a second time, and loved them even better than first time. Dead funny, good character studies, and even quite touching sometimes.