The difference between the book and movie versions of Breakfast at Tiffany's is more in the line of additions than changes. The narrator is just a poor nameless slob in the book. In the movie he's more fleshed out. He gets a name -- several actually -- he's a kept man with the hots for Holly -- but he's shy. She isn't interested anyway, he's not rich and she wants to be a kept woman -- not a working girl.