This movie is great, mind you - but only in the way it tells a very BAD story. Stella is so terribly crude, and never learns better. Her husband is incredibly snobby and small-minded. Neither ever learns better. Is this realistic? Somehow, Stella understands that her daughter is ashamed of her gaudy manners & dress, yet cannot understand that she just needs to tone it all down? I don't think so. Stella is a GOOD woman, and a VERY GOOD mother. Giving up herself, so her daughter can be associated with a bunch of bigoted snobs is disgusting.
Much of what we see might have been normal for the times - people having a beer or two, enjoying a player piano, dancing - but it is made out to be some sort of moral inferiority. "I can't have our child living this way!" Spare me.
This story tells me one thing: that the Unwashed Working Class cannot ever hope to aspire to the heights of the Upper Classes. And that is simply a load of hogwash.