I don't know if you have seen this film but it's really fatastic!!!! It's about a professor who tries to teach a girl that speaks Cockney (a dialect) how to talk properly with very good British accent. It's really worth it!!!
In Spanish we say: 'La lluvia en Sevilla es pura maravilla'. If you want to know how would you say that in English....click HERE
By the way, the adjective FAIR here means BEAUTIFUL= 'Mi bella dama'