The budget escalated from an initial $150 million to a reported $190 million, though some sources estimated its true cost to be as high as $250 million after reshoots and marketing were factored in. The first cut of the film was reportedly so poor that Brad Pitt himself described it as "atrocious". This led to extensive, expensive reshoots that delayed the release from a planned December 2012 date to June 21, 2013. The original, darker ending—featuring a massive, climactic battle in Moscow—was scrapped in favor of a quieter, more intimate climax set in the WHO facility.
Con el estreno pendiendo de un hilo, Paramount llamó a Damon Lindelof (creador de Lost ) para reescribir el final desde cero. Se rodaron 7 semanas adicionales en Londres, cambiando completamente la resolución de la historia. El resultado fue un Frankenstein cinematográfico que, milagrosamente, funcionaba. guerra mundial z 2013
A crítica elogiou a ação e a atuação de Pitt, embora alguns fãs do livro tenham sentido falta da abordagem política da obra original. The budget escalated from an initial $150 million