The couple relocated to the US city after a visit convinced them it was the perfect location to raise their six children.

Speaking at the New Orleans premiere of his new movie "The Curious Case of Benjamin Button" - which was filmed in the city on Dec.1st, Brad said: "Well it was big tax breaks that brought us here. I mean, that's not my department, but that's what brought us here. I'm telling you, it did something else for the film."

"It suddenly grounded it in a way that wouldn't have worked in other places. You know, there's magic and rhythms to New Orleans, that something mystical could happen here."

Meanwhile, Brad has also revealed he was pleased to be able to help the city - which was devastated by Hurricane Katrina in 2005 - through his charity, the Make It Right Foundation.

The 44-year-old actor, who has teamed up with architects to build affordable, sustainable homes in the region with the foundation, told Architectural Digest magazine: "You have no idea what a high it is for me to see the delight on people's faces when they see how these homes work."

"We've cracked something here. These houses redefine affordable housing - this is a proving ground for a bigger idea that could work globally. This project is not mine anymore. It's so beyond me."