Most of Hollywood’s Arabian Nights fantasies are, of course, unadulterated tosh. The Middle East, wrote the American film critic William Zinssner, is transformed into ‘a place where lovely young slave girls lie about on soft couches, stretching their slender legs… Amid all this décolletage sits the jolly old Caliph, miraculously cool to the wondrous sights around him, puffing his water pipe.