Alfred Hitchcock considered Clouzot a very serious rival for the title of
Master of Suspense, and Psycho (1960) was put into production because
Hitchcock specifically intended to outdo Diabolique (1955).
He beat Alfred Hitchcock in buying the rights to "Les Diaboliques" with a
margin of just a few hours. He filmed it as Diabolique (1955).
Clouzot's uncle Henri, the proprietor of a Paris art museum, the Palais Galliera, put together what is considered the first exhibition on the art of the cinema, with equipment, designs, scripts and costumes, in May of 1924.