Brad Pitt and Angelina Jolie are taking self defence classes.

The couple - who married in France last month - have been practising a form of Israeli self defence called Krav Maga to help them prepare for their upcoming movie 'By The Sea'.

Brad, 50 - who has six children, Maddox, 13, Pax, 11, nine-year-old Zahara, eight-year-old Shiloh, and six-year-old twins Knox and Vivienne with his 'Maleficent' star wife - is believed to have lost more than 10 pounds after participating in the intense military-style exercise classes for just three weeks and is even letting his kids join in the fun.

A source told the Daily Mirror newspaper: ''The whole family are learning the moves, even the little ones are doing modified kids' moves but Brad has been doing it for 45 minutes a day and has dramatically lost weight and beefed up his muscles for the film.''

While Brad is new to Krav Maga, Angelina started learning self defence to train for her 'Tomb Raider' role in 2001, and the super-fit pair are now said to be practising the technique several days a week.

The source said: ''Angelina previously learnt Krav Maga when she was doing Tomb Raider and loved it.''

'By The Sea' has been written and directed by Angelina, 39, and will mark the first time the couple have starred together on screen since they met on the set of 'Mr and Mrs Smith' in 2005.

The couple recently enjoyed their honeymoon with their children aboard a luxury yacht in Malta while filming began on the picture on the country's second largest island, Gozo.