Dahl and Cullum's wedding in wonderland

The celebrations won't stop for Sophie Dahl and Jamie Cullum once their Christmas and New Year parties are out of the way.

The 30-year-old jazz musician and his model girlfriend, 32, will wed in a lavish ceremony at Lime Wood, a beautiful Regency country house in the New Forest, Hampshire — and they have invited a number of celebrity friends.

According to sources close to the couple, they have chosen a winter wonderland theme.

Sophie has arranged for the venue to be candlelit and dressed with hundreds of fairy lights and her favourite flowers, blue eucalyptus, with white roses and black hypericum.

Oversized invitations which feature birds and flowers drawn by a professional artist were sent out two weeks ago to guests including Keira Knightley, Clint Eastwood, Nicole Kidman, Anna Friel and Jude Law.

"Sophie has planned every last detail of the wedding," says a source. "She and Jamie are so excited but they are trying to keep everything under wraps.

"They also don't want children to be at the service. Sophie has told us it will be a night of unbridled pleasure," the source adds.