A three-part documentary series based upon Mutants was filmed in London, Amsterdam, Paris, Naples, Vienna, Salzburg, Cape-Town, and across the United States. Commisioned by Channel 4 (UK), produced by Tiger Aspect (London), and directed by award-winning British directors Philip Smith and Damon Thomas, it airs in the UK in June 2004 and will also be shown in the USA on Discovery.

Praise for Human Mutants!

BMJ — "a brave attempt to explain what scientists and doctors know"

PLOS — "It's a freak show, but a freak show with thoughtful scientific commentary"

Daily Mail — "as absorbing and instructive hour as I have ever spent in front of TV."

TV Guide — "fascinating"

Scotsman — "struck a note of unfailing human compassion."

Sunday Times — "a humane and boundary breaking programme."

Independent on Sunday — "Opens with an illuminating examination of growth."

Observer — "brilliant ...a wise and thought-provoking show"

Guardian — "In one shocking scene, Leroi watches some footage of a piglet dubbed "Ditto" toppling under the weight of its double head while he giggles and flirts with the woman scientist who studies it."

Hull Daily Mail — "[Leroi is] a primping narcissist"