I'll teach you how to seduce a Man (1964) HD

Bob Weston is a tabloid magazine writer looking to score an interview with Helen Gurley Brown, a young and beautiful research psychologist who recently authored the best-selling women's advice guide "Sex and the Single Girl." Helen refuses the interview, so Bob impersonates one of her neighbors, Frank, in order to meet with her. Eventually, the two fall in love -- which forces Bob into a struggle to cover his trail of lies.