French poster advertising Houdini's 1919 silent film, The Master Mystery. It was a serial mystery told in fifteen installments. Houdini played a Secret Service agent who was attempting to thwart an international conspiracy to stop any sort of scientific progress.
He only made movies through 1922, finding film an unsuitable medium for his magic. Film editing cheapened his illusions and made his slight-of-hand tricks essentially meaningless.
One thing we can all agree on: dude had a creepy stare.