Producer and director (Alexander Korda) followed up The Private Life of Henry VIII (one of the first internationally successful British films) with this historical comedy. After years in exile, the great lover Don Juan (Douglas Fairbanks) returns to Seville, the city of his salad days. However, Don Juan is now married and middle-aged, and his days as a spoiler of women seem to be behind him. When he learns that a young man in town (Barry McKay) has been posing as him and making time with the local ladies, Don decides to prove who the great lover truly is and attempts the seduction of Antonia (Merle Oberon), a beautiful dancer. However, Don's doctor informs him that girl-hunting will tax his fragile health, and his wife Dolores (Benita Hume) will no longer turn a blind eye to his infidelity. When the impostor is killed by a jealous husband, Don is relieved, as his "death" allows him to retire from his career as a rake with his reputation intact. But when the old itch returns, Don makes the sad discovery that if he can't convince women he's Don Juan, they simply aren't interested in him. The Private Life of Don Juan provided one of the few speaking roles for silent screen swashbuckler Douglas Fairbanks, and proved to be his last picture.
by Mark Deming synopsis