In 1907, pioneering Edison director Edwin S. Porter turned out such landmark films as Rescued from an Eagle's Nest and The Teddy Bears. From the evidence at hand, it would appear that Porter's Laughing Gas was anything but a landmark. The scene is a laboratory, where nitrous oxide -- a.k.a. "laughing gas" -- is manufactured for medicinal purposes. A prankish youngster (played by an adult woman) steals a small vial of the liquid and spreads it around the populace. Before long, everyone in town is in the throes of helpless laughter. Contemporary reviewers suggested that the only laughs generated by this film were confined to the screen.