The epic, due for release later this year, captures the decline of the Maya kingdom and the slaughter of thousands of inhabitants as human sacrifices in a bid to save the nation from collapsing.
Gibson reveals he used present-day American politics as an inspiration, claiming the government callously plays on the nation's insecurities to maintain power.
He tells British film magazine Hotdog, "The fear-mongering we depict in the film reminds me of President Bush and his guys."
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