Jolie, Pitt struggle to find time alone

Angelina Jolie has confessed that her sex life with Brad Pitt has halted since the birth of their twins, Knox and Vivienne.

The 33-year-old actress told The Mirror that having six children has made it difficult for the couple to spend time alone.

"Even if we lock our door, the children come knocking," she said. "We often try to have a bath alone together at the end of the night and sit and talk, but they hear the water and want to jump in.

"But it's fun and it's lovely - the thing about having six is once you've passed three or four, it's so crazy anyway that it's just more chaos and it's all okay."

Appearing at the New York premiere of her new movie Changeling, Jolie described motherhood as "very hard work".

She added: "It's so much fun but it's very hard work. The kids are forming beautiful friendships. They're teammates and they're very loving to the babies."