6. Katherine Parker (Sigourney Weaver) – Working Girl (1988)

Why She's a Basterd: Katherine Parker is the ultimate corporate Medea – a high-powered bitch-boss with posh clothes, serious hair and an eye for career advancement that involves using her underling’s shoulders as stepping stones.

But pinching ideas from Tess McGill (Melanie Griffiths) is a big mistake – her fashion challenged secretary turns the tables with some good old white-collar humiliation.

Sample Quote:
Katherine Parker: Ugh! What a slob.
Tess McGill: You were so smooth with him.
Katherine Parker: Never burn bridges. Today's junior prick, tomorrow's senior partner.

What She’d Do To Tarantino's Nazis: Demote all the generals to soldiers, until there’s no-one left to lead anyone.