re: “Fake smoking” in movies?

quote:

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These days most actors smoke herbal and non-addictive cigs

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Aren't they all fake these days?

SAG apparently doesn't allow any real smoking on set...i.e. the workplace.

I've heard they'll use smoke machines to make a room look like everyone's smoking up a storm.

And most actors don't want to inhale whatever concoction is in that herbal cigarette.