This news has flashed speculation that they are secretly preparing to marry.

“Brad flew in to oversee preparations but they’re all here now, there’s a real buzz around the estate.” sources said.

Guests, including Pitt’s parents, have arrived at the chateau in advance to the ceremony, to be held at Chateau Miraval this weekend.

“Under French law couples have to get married at the town hall. Unlike with a religious wedding, there’s no way a couple can hold a civil ceremony at their own home,” Patrick Mareschi, deputy culture secretary of the nearby village of Correns, told the media.

After seven years and six children together, the couple engaged back in April.

Pitt, 48, recently bought Jolie, 37, a 250,000 pounds watch as a  gift.