Oscar-winning director Oliver Stone is to direct a film about the life and presidency of George W Bush, with Josh Brolin set to play the lead role.

Variety reports that the script for 'Bush' has been written by Stone's 'Wall Street' co-writer Stanley Weiser.

If financing for the film is agreed, it could begin shooting by April and be in cinemas in time for the US presidential election.

The trade daily reports that Stone is not planning to make an anti-Bush film but to chronicle key events in his life to explain how he came to power, with a structure similar to the Stephen Frears film 'The Queen'.

Stone told Variety: "It's a behind-the-scenes approach, similar to 'Nixon', to give a sense of what it's like to be in his skin. But if 'Nixon' was a symphony, this is more like a chamber piece, and not as dark in tone."

He continued: "People have turned my political ideas into a cliché but that is superficial. I'm a dramatist who is interested in people, and I have empathy for Bush as a human being, much the same as I did for Castro, Nixon, Jim Morrison, Jim Garrison and Alexander the Great."