Angelina Jolie's 37th birthday bash was anything but a blowout. The understated and intimate affair took place on June 4 at the Jolie-Pitt family's rented mansion in Surrey, England, a source confirms to Us Weekly exclusively. (The stars are shelling out $24,000 a month to rent the posh Wentworth Estate.)

"It was a very small bash -- just the family at home. They didn't go out or do anything," according to the source. "Just a simple one at home with a cake. No frills, but they're all really happy at the moment. Everyone's doing good."

No word yet on what Brad Pitt bought his bride-to-be for her special day -- but hopefully it's something extravagant, as Jolie purchased a waterfall for the Moneyball star's 48th birthday and Christmas presents in December 2011.

Jolie is currently in England prepping for her role in Disney's Maleficent, based on the villain from Sleeping Beauty. Pitt, meanwhile, will return to Budapest around June 20 to begin two weeks of reshoots for World War Z. While Pitt is away filming, an insider tells Us, "the kids will stay back in the UK with Angelina."

Given their busy filming schedules, it's also unlikely that Pitt and Jolie will tie the knot by year's end. "We actually, really and truly, have no date," Pitt -- father to Maddox, 10, Pax 8, Zahara, 7, Shiloh, 5, and twins Vivienne and Knox, 3 -- revealed at the Cannes Film Festival in May. "We're still hoping that we can figure out marriage equality in the states before [we exchange vows]."

沪江娱乐快讯:刚刚过去的6月4日是安吉丽娜·朱莉37周岁的生日。这位好莱坞性感女星的生日派对却是相当的低调,没有明星朋友,没有媒体记者,只是一家人吃吃生日蛋糕。简单但却洋溢着幸福之情。至于皮特为这位准新娘准备了什么生日礼物,我们就不得而知了。

安吉丽娜·朱莉的下一部电影就是《睡美人》的衍生片《玛琳菲森》(Maleficent)。玛琳菲森是童话故事《睡美人》中的反派邪恶女巫,她头上长角,皮肤呈绿色,巫术高超,会变身成黑紫色的巨龙。女神的新角色让人充满期待!