Brad and Angelina ready for another child

Brad Pitt says that with four children, "sleep is non-existent" and some days fatherhood is a rollercoaster ride. "It's the most fun I have ever had and also the biggest pain in the ass I have ever experienced," he told reporters at the Venice film fest. "[But] I love it and I can't recommend it any more highly." When asked if he and partner Angelina Jolie were ready for a fifth child, Pitt replied, "Yeah, we're ready." The couple arrived in Venice on Saturday with all four children in tow and headed for the exclusive Hotel Cipriani on Giudecca Island, a short boat ride from Venice. While Pitt promoted The Assassination of Jesse James by the Coward Robert Ford, Jolie enjoyed ice cream with their 2-year-old daughter Zahara and son Maddox, 6. Of juggling father hood and his career, Pitt says, "It makes me feel much more efficient, because that's the main focus. It makes me feel when I do have time to work, I really do have to focus because there is a really short window to get something done. I am quite pleased by it all."