Just watched this the other night? and have only remembered to make this entry!
As Weaver tells Griffiths "Dress shabbily and people notice the outfit,dress smartly and people notice the person" "coffee, tea or me?"
Working Girl (1988)

The movie is a typical love triangle with a twist: Katharine (Sigourney Weaver) loves Jack (Harrison Ford), Jack loves Tess (Melanie Griffith... wolf wolf!), Tess works for Katharine. The twist is that Katharine steals ideas from Tess. The witch! The way it all plays out is truly enjoyable.