Movies featuring "Wrong Side of the Tracks"

Great topic, kijii. These kinds of films are often among the best.

Three of my favorites:

Man's Castle (1933) - Spencer Tracy and Loretta Young in their shantytown home


A Tree Grows in Brooklyn (1945) - Peggy Garner coming of age in an early 1900s Brooklyn tenement


The Lower Depths (1957) - Akira Kurosawa's film about people living in a Japanese slum


Thanks Spider--
I did come up with this thread idea based on yours.
Sometimes, I get King's Row mixed up with Kitty Foyle  and I didn't realize that Sam Wood directed them both.
Sam Wood's stock keeps rising in my book. 
I also ID with Ginger Rogers with this type movie.
She was in both Kitty Foyle and Primrose Path.