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How did Martin Sheen’s heart attack affect the production of Apocalypse Now?

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The production of Apocalypse Now was famously troubled, and Martin Sheen’s near-fatal heart attack was a significant factor in the delays that plagued the film.12

When Sheen suffered the heart attack while filming on location in the Philippines, he had to be airlifted to a hospital in Manila. This medical emergency forced the production to delay, contributing to the chaotic and lengthy 238-day shooting schedule. The film's director, Francis Ford Coppola, faced numerous other logistical hurdles, including a typhoon, casting issues, and budget overruns, which ultimately caused the film to cost far more than its initial $12 million budget.312