Despite symptoms of sequelitis, Austin Powers in Goldmember is must-see lunacy for devoted fans of the shagadelic franchise. Unfortunately, the law of diminishing returns is in full effect: for every big-name cameo and raunchy double-entendre, theres an equal share of redundant shtick, juvenile scatology, and pop-cultural spoofery. All is forgiven when the hilarity level is consistently high, and Mike Myers--returning here as randy Brit spy Austin, his nemesis Dr. Evil, the bloated Scottish henchman Fat Bastard, and new Dutch disco-villain Goldmember--thrives by favoring comedic chaos over coherent plotting. Once theyve tossed Austin into the disco fever of 1975 (where hes sent to rescue his father, gamely played by Michael Caine), Myers and director Jay Roach seem vaguely adrift with old and new characters, including Verne Troyers Mini-Me and pop star Beyoncé Knowles as Pam Grier-ish blaxpo-babe Foxxy Cleopatra. A bit tired, perhaps, but Powers hasnt lost his mojo. --Jeff Shannon