"She smokes 'Yellow' cigarettes as part of the plot"
"smokes in many of the early scenes with some okay exhales. She begins smoking distintive yellow-papered cigarettes Gitanes, a French brand of cigarettes, midway through with are part of the story which comes later. [Galli] also smokes a yellow Gitanes cigarette in her first scene. One other scene has Galli smoking a small thin cigar with a special filter which she shows a fine nose/mouth exhale."
"For the first half of the movie, [O'Neill] smokes Marlboro 100s, though not in the gold box as you might expect. The movie was made in Italy and the 100s came in the same red box they do today.
, Allposters.com