Hollywood’s A-list couple Angelina Jolie and Brad Pitt are building a huge eco-friendly theme park for their six-strong brood. The pair decided to go ahead with the project in the grounds of their chateau in the South of France after last September’s visit to Legoland in Windsor, Berks, was cut short due to security concerns in the camp. “Brad and Angie felt really bad having to drag the kids home early when they were at Legoland last year. But if their bodyguards said there were too many people then they had no choice,” the Sun quoted a source as saying. “Their eldest son Maddox asked if they could build something similar at the house in France. They were already getting a new pool so they decided it was a great idea,” the source said. However, unlike Michael Jackson’s Neverland, most of the park will be underground, with turf on top and will be powered by sunlight, using panels in the roof and the water will be recycled. “Plans include a huge partly underground eco-friendly theme park in the garden with the kids’ favourite rides. “There’s a massive pool, slides, tunnels, boat rides, a pirate island with a castle, a go-kart track and even an old-fashioned carousel. “Brad has designed a mini train that goes around the whole grounds and it’s going to go through a door at the side of the new structure and into the park,” the source added.