In late March of 1984, a moving company secretly packed up the Baltimore Colts’ belongings and its fleet of vans sneaked off in the darkness of the early morning. Leaving a city of deeply devoted fans in shock and disbelief. What caused owner Robert Irsay to turn his back on a town that was as closely linked to its team as any in the NFL? Academy Award-winning filmmaker Barry Levinson, himself a long-standing Baltimore Colts fanatic, will probe that question in light of the changing relationship of sports to community. Through the eyes of members of the Colts Marching Band, Levinson will illustrate how a fan base copes with losing the team that it loves.

In October of 1980 Muhammad Ali was preparing to fight for an unprecedented fourth heavyweight title against his friend and former sparring partner Larry Holmes. To say that the great Ali was in the twilight of his career would be generous; most of his admiring fans, friends and fight scribes considered his bravado delusional. What was left for him to prove? In the weeks of training before the fight, documentarians Albert and David Maysles took an intimate look at Ali trying to convince the world and perhaps himself, that he was still “The Greatest.” At the same time, they documented the mild-mannered and undervalued champion Holmes as he confidently prepared to put an end to the career of a man for whom he had an abiding and deep affection

On the evening of Sept. 7, 1996, Mike Tyson, the WBC heavyweight champion, attempted to take Bruce Seldon’s WBA title at the MGM Grand in Las Vegas. At this point in his career, Tyson’s fights had become somewhat of a cultural phenomenon, where the ever present hype of the professional boxing scene would come face to face with the worlds of big business, Hollywood, and hip hop. Sitting ringside was controversial rapper Tupac Shakur. Shakur and Tyson were friends, a feeling of kinship linked them as each rose to stardom from poverty only to be thrown in prison. Following Tyson’s victory, Shakur and “Iron Mike” were to celebrate at an after party, but the rap star never arrived. Shakur was brutally gunned down later that night, and the scene in Las Vegas quickly turned from would-be celebratory revelry to ill fated and inopportune tragedy.

In the fall of 1993, in his prime and at the summit of the sports world, Michael Jordan walked away from pro basketball. After leading the Dream Team to an Olympic gold medal in 1992 and taking the Bulls to their third consecutive NBA championship the following year, Jordan was jolted by the murder of his father. Was it the brutal loss of such an anchor in his life that caused the world’s most famous athlete to rekindle a childhood ambition by playing baseball? Or some feeling that he had nothing left to prove or conquer in basketball? Or something deeper and perhaps not yet understood?

Stories from survivors of the Boston Marathon bombing.