Pygmalion
Enough with the Taxi Driver comparisons - which are totally valid, of course; did anyone else get the impression this movie was making references to Pygmalion, except with the roles inverted? It's the woman who teaches the man to become a gentleman - George repeatedly calls Simone a lady - by buying him fancy clothes? He's even called George, like George Bernard Shaw.
This world is a comedy to those that think, a tragedy to those that feel.