Cigarette smoke gag, 1926

This footage can be found on the documentary, Unknown Chaplin. I believe it is an outtake from Ralph Barton's home movie, Camille, from 1926. You can watch the film in its entirety here. If you haven't seen it before, you should check it out--lots of rare footage of Charlie (aka "Mike")-- including the Dance of The Rolls (out of costume).