Question: Who was the writer of the film in which the twin gangster  performed who were the foremost perpetrators of organised crime in the East End of London during the 1950s and 1960s?
Sentence (from "Kray twins"): Twin brothers Ronald "Ronnie" Kray (24 October 193317 March 1995) and Reginald "Reggie" Kray (24 October 19331 October 2000) were English gangsters who were the foremost perpetrators of organised crime in the East End of London during the 1950s and 1960s.
Relevant evidence: Yes