Gibson's The Passion of the Christ last year became the most successful independent film ever made, grossing more than £200 million worldwide. It was also a hit in America's bible belt, which has long felt ignored by Hollywood. The star claims that his new thriller, Apocalypto, will champion another neglected cause, the millions of Maya who still live in Mexico and Central America, many of whom speak one of the Mayan languages.
Anyone who turned nauseous at the flesh-ripping carnage of The Passion should fear for their stomachs again. While Mayan civilisation thrived for nearly 2,000 years before its mysterious collapse, mastering astronomy and the construction of pyramids, it also carried out savage rituals of human sacrifice to appease the gods.
'Hey, this is for kids with strong stomachs,' said Gibson, 49, responding to a question about plans for children's movies during a press conference in the Mexican port city of Veracruz, where the conqueror Hernan Cortes landed in the early 16th century en route to demolishing the Aztec empire.
The devout Roman Catholic said that the plot of Apocalypto - a Greek word meaning 'new beginning' - concerns a Maya Indian family man who 'has to overcome tremendous odds to preserve what he values the most'. The action movie - directed, produced, funded and co-written by, but not starring Gibson - will employ relatively unknown actors along with hundreds of extras speaking the Mayan tongue of Yucatec.
'I'm hoping that by focusing on this civilisation we're able to be introspective about ourselves,' Gibson explained. 'It's set before the Conquest, so we are using mostly indigenous people and actors from Mexico City. There's a lot of mystery to the Mayan culture, but it's just the backdrop to what I'm doing - creating an action adventure of mythic proportions.'
The star has endeared himself to his hosts by offering £560,000 to reconstruction efforts following Hurricane Stan, which devastated Mexico and Central America this month. The Mexican media highlighted images of Gibson meeting with President Vicente Fox. Tourism officials are hoping that the film, due to begin shooting in mid-November, will pump £11m into the economy.
A vanished civilisation
1) Mayan civilisation stretched across much of what is now southern Mexico, Belize and Guatemala and endured for nearly two millenniums, disappearing around AD 900.
2) Despite lacking the cartwheel or metal tools, the Maya built pyramids, palaces and courts for a ritual ball game. They inhabited vast cities such as Chichen Itza, Tikal and Uxmal.
3) Mayan astronomers mapped the phases of celestial objects, especially the Moon and Venus, and tracked a solar year of 365 days. They developed mathematics, using a base number of 20, and had a concept of zero. The civilisation was sufficiently stable to have a word for a 400-year time period.
4) The collapse of their civilisation, which occurred centuries before the arrival of the Spanish conquistadors, has long been a mystery. Theories include civil war, invasion, migration, disease, over-farming, over-population and drought.