Pulfrich Filter Spectacles to view a 2-dimensional motion picture with 3-dimensional visual effects are disclosed. A method for synchronizing the Puifrich filter spectacles and a method of displaying 2-dimensional motion pictures as 3-dimensional pictures using the spectacles are also disclosed. The Puifrich spectacles and its synchronizing method and displaying method will allow almost any motion picture to be viewed effortlessly by the viewer with the visual effect of 3-dimensions.