Of all the Robin Hoods that have come and gone, at least one of them wondrously zestful -- that's Errol Flynn's -- and one of them was woefully zonked -- that's Kevin Costner's. Up to now, the only absurd one has been Mel Brooks's send-up, "Robin Hood: Men in Tights." Yet Ridley Scott's new version achieves an absurdity all its own. It's an ersatz epic about men in fights -- grim fights, grinding battles, clanking combats that are repetitive and, in a movie that runs 140 minutes, almost endless. Russell Crowe fights a losing battle against Brian Helgeland's turgid script, and the production's almost total, and truly absurd, absence of fun.