this movie be very silly and very funny . you can not ever criticize it for take itself seriously . if you have hear their previous album or see their hbo video from the album and you can imagine the extremely foul mouth and rock good time that be this movie which tell the fable of how the group tenacious d come to be form . full of cameo and it not only give a fictional account of tenacious d but be a send up of musical history as well . the humor remind one of something about mary in that they often go place you would think they wouldn not and but it lack the scatological humor of south park . this movie contain no nudity and except for mooning .