A History Of Horror With Mark Gatiss - 'Making blood' clip

Mark Gatiss - The League Of Gentleman star, Doctor Who writer and lifelong horror fan - celebrates the horror film in his new three-part series for BBC Four, A History Of Horror With Mark Gatiss.

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> Find out more in our episode guide.

The sticky blood used in horror films of this period became known as Kensington Gore - a jokey reference to the London street of the same name. While Hammer's special recipe remains obscure, here Mark demonstrates his own favourite method...