In mid-1963, Columbia Pictures released two teen films, Gidget Goes to Rome and 13 Frightened Girls. A more accurate title for the Castle contribution might have been Gidget Goes Mata Hari. Pert Candace Hull, the precocious daughter of an American diplomat, arrives in swingin' London. While visiting Mai-Ling, a classmate who happens to be the niece of the Red Chinese ambassador, Candace accidentally uncovers a brewing political brouhaha. It also happens that she's taken a shine to Wally Sanders, the Embassy's CIA frontman, so Candace passes this info along, launching her career as teen spy. A quick read of a How-to-Be-a-Spy manual arms our pint-size peeper with the principles of espionage, and off she goes, code name “Kitten,” compromising the consular corps. Campy and cantankerous, 13 Frightened Girls has a gimmick, as all Castle films must. Auditions were staged in different countries to find just the right actresses to skillfully play the diplomats' daughters. I'm being diplomatic.