Chicago Reader review:
Leo McCarey's 1945 sequel to his hugely successful Going My Way (1944), with Bing Crosby back as Father O'Malley, the pipe-smoking priest of the New York slums. Going My Way is probably the worst of McCarey's major films—obvious, coy, fearsomely sentimental—but Bells is one of his finest, a film so subtle in its romantic exposition that it's halfway over before you realize what it's about: a priest in love with a nun. Seldom has a sequel so completely transcended its predecessor: McCarey's invisible hand, nudging the narrative more than directing it, turns looming cliches into the most refined, elusive feeling. With Ingrid Bergman, Henry Travers, and William Gargan.
Here (and above) is the trailer.