Pretty Woman
The original quote, with slang
Woman at the polo match: Edward is quite a catch.
Vivian: Oh, I'm not trying to land him. I'm just using him for sex.
What does it mean?
Woman at the polo match: Edward has all the qualities women desire in a husband.
Vivian: Oh, I'm not trying to marry him. I'm just using him for sex.
The original quote, with slang
Edward: You and I are such similar creatures, Vivian. We both screw people for money.
What does it mean?
Edward: You and I are such similar creatures, Vivian. I take advantage of them to get their money, while you have sex with them for money.
("screw" has two meanings: take advantage and have sex)