Subpoenaed again in 1951, Collins identified more than 20 colleagues as communist sympathisers - among them Budd Schulberg, the Oscar-winning screenwriter of On the Waterfront, who went on to name names himself.

BBC: Richard Collins: Blacklisted Hollywood writer dies

In the words of Budd Schulberg, who had seen them all from Jack Dempsey on, Jones was "Hamlet with a mouthpiece" - to be or not to be one of the greatest?

BBC: Jones out to prove his greatness