Dead Man Walking is a 1995 American crime drama film starring Susan Sarandon and Sean Penn, and co-produced and directed by Tim Robbins, who adapted the screenplay from the 1993 non-fiction book of the same name.

Sister Helen Prejean (Sarandon) establishes a special relationship with Matthew Poncelet (Penn), a character based on convicted murderers Elmo Patrick Sonnier and Robert Lee Willie. He is a prisoner on death row in Louisiana, and she visits him as his spiritual adviser after corresponding with him.

The film was a critical and commercial success; it grossed $83 million on a budget of $11 million and received praise for the performances of Penn and Sarandon, as well as Robbins' direction. Sarandon's performance won her the Academy Award for Best Actress, while Robbins, Penn and Bruce Springsteen were nominated for Best Director, Best Actor and Best Original Song, respectively, for the single "Dead Man Walkin'".

DETAILED PLOT

Matthew Poncelet, who was sentenced to death for the murder of a teenage couple, has been on death row at the Louisiana State Penitentiary for six years. He committed his crimes with Carl Vitello, who was sentenced to life imprisonment without parole. As his scheduled execution date approaches, Poncelet asks Sister Helen Prejean, with whom he has corresponded, to help him with a final appeal.

Sister Helen decides to visit Poncelet, who is arrogant, sexist and racist, and does not even pretend to feel remorse. He protests his innocence and insists Vitello killed the two teenagers. Convincing an experienced attorney to take on Poncelet's case pro bono, Sister Helen tries to have his sentence commuted to life imprisonment. After many visits, she establishes a relationship with him. At the same time, she gets to know Poncelet's mother, Lucille, and the families of the two victims. The victims' families do not understand Sister Helen's efforts to help Poncelet and claim that she is "taking his side". They desire "absolute justice" i.e. his life for those of their children.

Sister Helen's application for commutation is refused. Poncelet asks Sister Helen to be his spiritual adviser through his execution, and she agrees. Sister Helen tells Poncelet that his redemption is possible only if he takes responsibility for what he did. Just before he is taken from his cell, Poncelet tearfully admits to Sister Helen that he had killed the boy and raped the girl, before Vitello killed her. As he is prepared for execution, he appeals to the boy's father for forgiveness and tells the girl's parents that he hopes his death brings them peace.

Poncelet is executed by lethal injection and given a proper burial. The murdered boy's father attends the funeral ceremony; although he is still filled with hate, he soon begins to pray with Sister Helen.