Hollywood superstar Angelina Jolie, who turned 37 on June 4, did not throw a big birthday bash this year and celebrated quietly at home with her children and boyfriend Brad Pitt. The Salt star, who is presently in England to prepare for her role in Disney's Maleficent, cut the cake surrounded by her children Maddox, 10, Pax 8, Zahara, 7, Shiloh, 5, and twins Vivienne and Knox, 3, and Brad at her rented Wentworth Estate mansion, Contactmusic reported. "It was a very small bash - just the family at home. They didn't go out or do anything. Just a simple one at home with a cake. No frills, but they're all really happy at the moment. Everyone's doing good," a source said. Brad has come to England just to celebrate Angelinas birthday and will return to Budapest around June 20 for reshooting for World War Z. "While he is away shooting for the movie, their children Maddox, Pax, Zahara, Shiloh, and twins Vivienne and Knox, stayed in the United Kingdom with Angelina," the source added.