There’s mystery in the air. From the cargo vessel loaded with explosives, with 3 times the number of crew needed for a ship this size, planning to leave the harbor before the authorities board it in the morning, traveling to an unknown destination known only to a strange P. T. Barnum-like movie producer looking for a star for his movie in the homeless shelters, to the black and white images almost always shot in poor light or fog with portions of the scene too dark to see into, there’s mystery in the air in what many people have on their list of all-time best movies.