Let us assume, friendly reader, that it is eight o'clock in the evening when you make yourself comfortable in your den, to peruse this chapter. I want to tell you about the Action Film, the simplest, the type most often seen. In the mind of the habitué of the cheaper theatre it is the only sort in existence. It dominates the slums, is announced there by red and green posters of the melodrama sort, and retains its original elements, more deftly handled, in places more expensive. The story goes at the highest possible speed to be still credible.