"Lots of holding and ambient smoke around her, she looks quite glamorous in most of the smoking scenes. But probably not IRL. Only one or two IRL inhale/exhales."
Other references to this movie:
Ashley Judd - Info - "There's so much smoking in this movie [De-Lovely (2004)]. `Yeah, and you know what's funny? Because of the duration of a take, I didn't smoke that much. I didn't smoke any nicotine whatsoever. It was all herbal, but I never had to smoke an entire herbal cigarette. That's just the nature of shots and takes", About.com, Jun. 17, '04
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, Allposters.com