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 filling of layers of pork loin and apple, slightly sweetened with sugar, and filled with half a pint of white wine. By the 19th century sweetened fruit and meat combinations had become less common, and the raised crust pork pie took its modern form. Traditional pies use a mix of fat and cured meat, giving the filling a pink colour. They are often produced in moulds or forms, giving the outside of the pie a very regular shape. This method is simpler and cheaper for volume production, and hence the more common choice for commercial manufacturers. As the meat shrinks