Anthony Horowitz regards Alfred Hitchcock as a genius who changed the language of cinema and made some of the most memorable films of the 20th century.

However, the film director is also seen as a troubled man who was at times abusive towards some of his leading ladies.

The expert witness is Nathalie Morris; Senior Curator at the BFI, National Archive.

Presenter: Matthew Parris

Producer: Perminder Khatkar

First broadcast on BBC Radio 4 in April 2016.