Brad Pitt and Angelina Jolie exchanged romantic love letters when they were forced to be apart last year.

The 39-year-old actress, who has six children, Maddox, 13, Pax, 10, Zahara, nine, Shiloh, eight, and five-year-old twins Vivienne and Knox, with her 50-year-old fiancé, says he was very supportive when she spent three months directing her upcoming biopic, 'Unbroken,' about World War II hero Louis Zamperini, in Australia, even though he was filming his upcoming film, 'Fury,' in London at the same time.

The brunette beauty told Australia's TV Week magazine: ''He was supportive from a distance, and it was quite romantic in a way.

''We decided to be of that time, when we could imagine he was in the European theatre and I was in the Pacific theatre, and we wrote handwritten letters to each other that were very connecting for us, thinking of the people that were separated for months, if not years, at a time back then.''

The 'Maleficent' actress recently admitted she plans to take on less work in front of the camera in the future, so she can focus on her family and her humanitarian work.

She said: ''I'm not retiring completely, but I'm going to focus more on my writing, directing and my humanitarian work, so I will do less films and hopefully that will also make it possible to be very selective and do a few I feel really compelled to do. But I will be doing much less.''