Happy and sad clowns: Happy and sad clown faces. Silly clown walk: Silly walks using the whole body to make the audience laugh. Custard pie splat: Slapstick mime routine using physical comedy.

Bright smiles, funny faces, goofy laughs - clowns, in many forms, have been a source of entertainment for centuries. So when did they get so spooky? Cinematic clowns have a reputation for being ...