Luigi Cozzi, one of the nine credited screenwriters on the film that producer Carlo Infascelli wanted to change the script depending on the actors demands.

[1] Cozzi noted that he was phoned by Infascelli and was told to change the scenes per Leroy's demands within 24 hours.

[1] Cozzi noted he was often phoned and told to find reasons and ways things changed.

[1] The Black Hand was released in Italy on March 16, 1973 where it was distributed theatrically by Roma Film.

[5] The new film, due for release in 2018, will star Leonardo DiCaprio as Joe, and will be partly based on Stephan Talty's upcoming novelization of Petrosino's assassination.