What does Leonardo da Vinci 's The Last Supper have in common with EastEnders? The comedian takes a wry look at the Renaissance master's life and work, with art critic Brian Sewell appearing as his rival Michelangelo.

Creator of some of the greatest works of art in human history, but at the same time barely able to finish them, Leonardo is possibly the most easily distracted genius who ever lived. Mark Steel gets close to some of Leonardo's greatest works, and finds out what The Last Supper has in common with EastEnders.

Packing in not just a life of Leonardo but also a brief canter through the political geography and the latest technological advances of the world he was born into, Mark begins by exploring the standards of great art and great beauty as they were before Leonardo truly made his mark. Then it's a whistle-stop tour round Italy as Leonardo builds a reputation both for genius and not doing what he's paid for.