Wayans Brothers

"All the Wayans Brothers do is take something that is already well beyond its sell-by date and go "here, you know that? That's funny, isn't it?"" - Mark Kermode, BBC Radio 5live

How they think it works: "they notice trends and things that have passed their time - that are at a point where they have become almost parodies of themselves" - Wayans Brothers producer Rick Alvarez

How it actually works: Take something that has long ago had any comedy potential squeezed out of it, throw a bunch of witless and offensive stereotypes at it, and become one of the richest film-making dynasties in the world.