Katie Holmes may have fallen for it, but Tom Cruise’s sci-fi seduction technique scared the bejeezus out of Scarlett Johansson, a source close to the actress says. Weeks before he began wooing his brainwashed bride-to-be, Cruise made repeated phone calls to the 19-year-old starlet—who was then set to co-star with him in Mission Impossible III—imploring her to meet him at the Scientology Celebrity Center in L.A. But when the actress finally agreed, the supposedly professional get-together took an oddly spiritual turn. “[Cruise] took me into this room, which was stifling hot, and was showing me all kinds of info about...