It's from that movie "Sabrina". Stars Harrison Ford & Julia Ormond.
The Larrabees of Long Island are a very wealthy family, with 2 sons - the younger David is a playboy, Linus the serious older brother. Sabrina is the clumsy daughter of their chauffeur. She's loved David since a child but he's never noticed her. Sabrina was sent away to Paris for school & returned a very beautiful woman. David who by time is engaged, fell in love with her anyway. As his marriage is to be a huge $$$ financial merger, Linus stepped in to stop David breaking his engagement. His plan is to get rid of Sabrina, pay her off. But as it turns out she wasn't the naive girl she was before, he fell in love with her.