Fathom (1967)

A steady hand and a parachute come in handy when a vacation turns into a spy caper. Leslie H. Martinson's spy spoof "Fathom" stars Raquel Welch, then at the height of her pin-up fame, as Fathom Harvey, an American dental hygienist visiting Spain's Costa del Sol with a touring skydiving team. Before she knows it, she's recruited by a shadowy British intelligence outfit, H.A.D.E.S., to parachute onto a villa and help recover the "Fire Dragon," a mysterious object linked to a missing nuclear trigger. Soon she's tangled up with charming rogue Peter Merriwether (Anthony Franciosa), eccentric collector Serapkis (Clive Revill) and a string of double-crosses that make it hard to know who's on whose side. The plot is gloriously silly, a proto-"Austin Powers" romp, and Welch's line readings won't win any awards, but that's hardly the point. The film is really a showcase for her mod wardrobe - including an iconic lime-green bikini - hair that stays flawless through a high-speed boat chase, and a truly surreal sequence in which she's pursued by an angry bull. It's a campy slice of '60s fun.