Stolen Paradise (1940)

Robert Gordon (Leon Janney), a sheltered 18-year-old youth reared in a Catholic school, believes he has a vocation for the priesthood. He is taken to live with his father in his palatial Florida home, where he falls in love with his stepsister Patricia Morrow (Eleanor Hunt), 10 years his senior. He runs away and joins the R.A.F. Shot down in battle, he is rescued and taken to a monastery where he renounces the world to study for the priesthood.