As she approached her 90th birthday and showed no signs of slowing down, Dr. Ruth Westheimer, now 91, a Holocaust orphan who became America’s most famous sex therapist, became the subject of a new documentary film. With her diminutive frame, thick German accent and characteristically uninhibited approach to sex therapy and education, Dr. Ruth revisits in the film her painful past and unlikely path to a career at the forefront of the sexual revolution.