It was a remarkable and compelling rise to the spotlight. But then came the stunning, confounding, and ultimately tragic fall. In the 30 for 30 film "Tommy," directors Erin Leyden and Gentry Kirby explore the story of one-time heavyweight boxing champion Tommy Morrison in a tale that's unlike any other. Born into a troubled family in the American heartland, Morrison's initial emergence as a fighter was bolstered by a starring role in Rocky V. A few years later, he beat George Foreman for the WBO heavyweight title, and seemed primed for more stardom, even in the face of blown opportunities and upset losses. But then everything changed in early 1996, when he tested positive for HIV, forcing him into retirement. From there, Morrison's life spiraled further and further downward, plagued by drug problems, jail time, and most alarmingly and bizarrely, an eventual denial that he had the virus at all. There have been other boxers, and other sports stars, whose stories ended sadly. But rarely ...