What are some good movies portraying loneliness, romance and poverty?

Question

I'm interested in finding some movie titles with these topics, could be all in the same or separate, and I know people tend to have some good titles, so I thought I'd ask and see what I can find, thank you all.

Answer 1

Requiem for a Dream.

Answer 2

8 Mile

Requim for a Dream

Hustle and Flow

Answer 3

Pretty Woman, Erin Brocovich, Ever After.

Answer 4

moulin rouge!

Answer 5

les miserables