The Ending Blow Out
Sally dies, the truth is buried, and Jack uses her scream in a B-movie
The ending of Blow Out is widely considered one of the bleakest in American cinema. Jack wires Sally with a microphone during Philadelphia's Liberty Day celebration, hoping to catch Burke incriminating himself. Burke kills Sally instead. Jack arrives seconds too late, cradling her body as fireworks explode above them — De Palma composing a tableau of patriotic celebration around a dead woman who was murdered because she got too close to a political conspiracy.
The final scene twists the knife. Back at the studio, Jack's producer is unhappy with the scream in the slasher film they've been editing throughout the movie. Jack plays back Sally's actual death scream — the recording he made through the wire she was wearing — and uses it. "It's a good scream," the producer says. Jack sits in the dark with headphones on, destroyed.
De Palma refused to change the ending despite pressure from everyone
The studio wanted Sally to survive. Nancy Allen lobbied for a different ending. The expectation — Travolta as star, Allen as love interest, the conventions of the thriller genre — all pointed toward rescue. De Palma understood what he was denying the audience and did it anyway.
"That's what the public expects, it seems, when you have John Travolta and a pretty girl." — Brian De Palma, Interview Magazine (2011)
The ending makes the argument. Jack has the evidence. He has the recording. It doesn't matter. The conspiracy wins. And the only use for Sally's final moment of authentic terror is as raw material for a cheap horror film — the entertainment industry converting real human suffering into product.
Tarantino called the final scene one of cinema's most heartbreaking
"The final scene was one of the most heartbreaking shots in the history of cinema." — Quentin Tarantino, TCM
Tarantino's use of "heartbreaking" rather than "shocking" or "disturbing" is precise. The ending doesn't work because it's cruel — plenty of thrillers kill sympathetic characters. It works because Jack's decision to use Sally's scream is simultaneously the most devastating and the most logical thing he could do. He's a sound man. He has a perfect scream. His craft demands he use it. The horror is that professionalism and despair produce the same action.
The fireworks create the film's cruelest image
De Palma stages Sally's death against the Liberty Day fireworks — red, white, and blue exploding above Jack as he holds her body. The juxtaposition is savage: American celebration as backdrop to American political murder. The patriotic spectacle continues indifferently while a woman dies. The crowd cheers.
The image also mirrors the film's opening — a cheap slasher movie playing for laughs. Blow Out begins and ends with screaming women, but the final scream is real, and no one in the audience (within the film or watching it) knows the difference.