[1] In 1946 Damiani became part of the so-called Group of Venice with Fernando Carcupino, Hugo Pratt and Dino Battaglia.

[citation needed] Before his career as a big screenwriter, Damiani was first a comic cartoonist in association with the "Group of Venice".

A smaller publication to which he also contributed through illustration was Mike Lazy (1946) producing two volumes in Albo Dinamite by Edizioni Il Carro in Milan.

[6] In 1968, with The Day of the Owl,[7] he started a series of films in which social criticism, often related to the connections between politics and crime, was mixed with spectacular plots.

[8] He was known to cult horror film fans for directing Amityville II: The Possession in 1982 for Dino De Laurentiis.