I am the best-selling author in the world according to the Guiness Book of Records, “ exclaims 81-year-old romance fiction queen Barbara Cartland, resplendent in sky-blue voile, as she begins work on her 362nd book. George Paul Csicsery’s wonderfully funny film takes you inside the world of the romance novel: its wildly successful authors and book-devouring fans, its publishers series (Harlequin, Silhouette, Supreme Ecstasy), its literary raison d’etre (“We’re all in love with love”). <i>Where the Heart Roams</i>’ heroine is Chelley Kitzmiller, a southern California housewife who credits “Sweet Savage Love” with introducing her to literary passion. She and Kathryn Falk organize a cross-country “love train” for a New York-based conference on the genre. With 20 million American readers, romance is big business.