I don't think I have ever seen Carousel on stage but my folks had a record of it when I was young, and I really liked it. Unfortunately, that leads to my only real complaint about the movie...
The music is splendid ("Carousel Waltz" in particular), the story compelling. There's even a bit of philosophy (the blossoms fell because it was their time). And Carousel isn't padded out with interminable dance scenes -- just one, six minutes of dancing on rooftops. The other big dance scene, Louise's Ballet, is the only dance I can think of that kept keep me not just away from the fast-forward, but glued to the screen! Susan Luckey, as Louise, is the star of the show (for her fifteen minutes).
One real problem with movie musicals is the opening up of the stage. We don't want to lose the stage, since this is, after all, a fantasy; but neither do we want just a filmed play. Some go too far into location (e.g., South Pacific) and others go nowhere at all (Oklahoma). Even Music Man is a bit too stagey. But Carousel has found just the right mix between the stage and location. The transitions from one to another are particularly well-done.
BUT... Somewhere between the play and the movie, we lost at least two songs, and whole verses of other songs! If I hadn't listened to that cast recording in my youth, I would never have known. But I did, and the missing music sorta spoils an otherwise superb movie.