"Joan smoked with style in every episode, initially standard cigarettes, subsequently Mores. For a while (in series #2) the picture during the opening credits showed her dragging and exhaling, but this was later replaced. Diahann smoked all-whites as I recall. Pamela Sue took a hit on a joint in an early episode."
"Dynasty" (1981) | Terri Garber
"She was trying to imitate Joan Collins' character by smoking a thin cigar
type cigarette. (Mores?)"
Other references to this movie:
Joan Collins - Info - video, fwd to 1:14, "Dynasty" (1981), youtube, when?
, Allposters.com