Gelatin The fillings of both are made by combining ground pork with gelatin cubes, and in the process of cooking, the gelatin melts, creating a soupy interior with a characteristic gelatinous stickiness. Gelatin is used for the clarification of juices, such as apple juice, and of vinegar. Isinglass is obtained from the swim bladders of fish. It is used as a fining agent for wine and beer. Besides hartshorn jelly, from deer antlers (hence the name "hartshorn"), isinglass was one of the oldest sources of gelatin. The consumption of gelatin from particular animals may be forbidden by religious rules or cultural
The Substance of Fire the film version, in which Rifkin and Parker reprised their stage roles. The cast also included Timothy Hutton, Tony Goldwyn, Lee Grant, Elizabeth Franz, Dick Latessa, and Eric Bogosian. The film was released by Miramax in the United States in 1996, after being shown at several film festivals, including the Deauville Festival du Film Americain (August–September 1996), Boston Film Festival (September 1996), and Mill Valley Film Festival (October 1996). Sullivan was nominated for the Grand Special Prize at the Deauville Film Festival. The Substance of Fire The Substance of Fire is a play by Jon Robin Baitz. Isaac Geldhart is