The Fantasticks (1964)

Neighboring widowers plot to romantically unite their son and daughter by pretending to feud and forbidding the two children to associate with each other. Their scheme works and the two youngsters fall head-over-heels in love. To end their "feud" the fathers hire a bandit and his henchmen to fake an abduction and allow the son to rout the assailants. The plan works, but the two love birds discover that requited love is much less exciting than forbidden romance and they break off their relationship. Matt, the son, resolves to see the world and receives a severe buffeting, while Luisa, the daughter, has an unhappy romance with the bandit, who steals her most precious possession, her mother's necklace. Matt returns, sadder but wiser, and the two former lovers reunite.