Pork pie hat the "man-about-town", but its resurgence in the United States in the 1920s is credited to the silent film actor Buster Keaton who wore them in many of his films. The hats from his films were ones the actor made himself by converting fedoras and other hats into pork pies, creating more than a thousand in his lifetime. This kind of pork pie had a very flat top and similar short flat brim. Arguably the heyday of the pork pie hat occurred during the Great Depression. In this incarnation, the pork pie regained its snap brim and increased slightly in height.
Pork pie hat "rude boy" subculture popularized the hat and brought it back into style in the United Kingdom, thereby influencing its occasional appearance in the mod subculture. The porkpie hat enjoyed a slight resurgence in exposure and popularity after Gene Hackman's character Jimmy "Popeye" Doyle wore one in the 1971 film "The French Connection". Doyle was based on real-life policeman Eddie Egan, who played the captain in the film, and his exploits. Egan was famous all his life for wearing a pork pie hat, and refused to surrender his hat to Gene Hackman to wear in the film. The producers were forced