The Seven Cities of Love (1968)

A super wealthy young man falls for a movie star. To get her attention, he buys the entire studio where she works. He then swaps places with his driver and pursues his hobby by forming a film crew. At the same time, a criminal gang, led by a captivating woman, enters the scene. This all happens just as the wealthy young man and the movie star genuinely fall for each other. After a string of adventures and ups and downs, the rich young man and the movie star eventually get married.