Brad Pitt wants marijuana to be legalised.

The actor was talking to the Today Show about his charity Make It Right - which builds houses for those who were hit worst by Hurricane Katrina in New Orleans - when he was asked about the residents hopes that he will run for Mayor of the city.

"Yeah, I'm running on the gay marriage, no religion, legalization and taxation of marijuana platform."

"I've got no chance," he joked.

When pressed on the matter, he replied, "(Politics) is not what I do best."