Ray Harryhausen with his Medusa from CLASH OF THE TITANS

LONDON, ENGLAND – JUNE 29: Special effects creator Ray Harryhausen poses for photographs with an enlarged model of Medusa from his 1981 film ‘Clash Of The Titans’ at the The Myths And Legends Exhibition at The London Film Museum on June 29, 2010 in London, England. Ray Harryhausen is considered the father of modern day special effects. In total Ray made sixteen landmark fantasy films including ‘Jason And The Argonauts’ (1963), ‘One Million Years BC’ (1966) and his last feature ‘Clash Of The Titans’ (1981). The exhibition includes original models and artwork and opens on June 29, 2010. (Photo by Peter Macdiarmid/Getty Images)