TheSapheadisa1920comedyfilmfeaturingBusterKeaton.Itwastheactor'sfirststarringroleinafull-lengthfeatureandthefilmthatlaunchedhiscareer.　　Theplotwasamergingoftwostories,BronsonHoward'splayTheHenriettaandthenovelTheNewHenriettabyVictorMapesandWinchellSmith,whichwasmeanttobeanadaptionofHoward'splay.