[...On ITV1 tonight at 1.40amAm I alone in finding this antisocial time slot an insult to this brilliant movie? A side-splitting spoof of an English heavy rock band on tour in America, it’s one of the funniest movies ever made. Ah well, that’s what recording devices are for I suppose.Since first seeing this film years ago, I’ve not been able to look at bands like Black Sabbath, Def Leppard et al in the same way. It’s totally changed my appreciation of heavy rock, and heavy rocks for that mat]