Goodbye & Amen (1978)

A CIA agent (Tony Musante) stationed in Rome is part of a group plotting to overthrow an African government not friendly to U.S. interests. But his plot goes awry when an unstable colleague starts shooting people from the roof of a hotel and seizes two hostages, a movie star (Gianrico Tondinelli) and the married woman (Claudia Cardinale) he's having an affair with. Based on the novel THE GROSVENOR SQUARE GOODBYE by Francis Clifford and directed by Damiano Damiani (CONFESSIONS OF A POLICE CAPTAIN). Although the plot is far fetched and ludicrous at times, this is an intense complex political conspiracy thriller, a genre quite popular in Italy in the 1970s. I stand to be corrected but to the best of my knowledge, this movie was never released in the U.S. theatrically. I suspect the CIA as the bad guys might have had something to do with it. There are many strands in the convoluted plot that are all tied up by the movie's end although stick with the Italian language version as the English language version features a spoiler not in the Italian cut. Worth seeking out. With John Forsythe, John Steiner, Renzo Palmer, Fabrizio Jovine and Wolfango Soldati.