The Scorpion with Two Tails (Italian: Assassinio al cimitero etrusco, lit.

[1] Two original scripts are located in the SIAE archives, one signed by Ernesto Gastaldi and one by Dardano Sacchetti in 1982.

[1][5] The French film producer Jacques Leitienne is also listed in the credits as a co-writer, but this was purely for bureaucratic reasons.

[1][2] Shooting lasted for four months in Volterra, Cerveteri, Formello, New York City and at R.P.A.

[2] Sergio Martino later regretted the film saying "it didn't add anything to my career, not even from an economic standpoint.