although made cable film hbo enjoyable movie fascinating look backstabbing doubledealing world television allowing viewer peek behind scenes socalled late night talk show wars early s jay leno david letterman competed coveted position host tonight show kathy bates gives bravo performance lenos mercurial manager helen kushnick one feel empathy lenoletterman endured hands tv executives timely now considering recent events involving failed attempt abc replace nightline letterman matter many times seen film still find much pleasure watch first aired ever released dvd would certainly add collection