Giovanna and her husband Tom Fletcher spent the day at Warwick Castle with family friends Matt and Emma Willis and their three children.The mum-of-three, 36, who shares sons Buzz, six, Buddy, four and Max two, with the McFly singer, shared snaps of her family unit to her 2 million followers online as the families made the most of their half term antics with their celebrity pals.The group kicked off the day with a lovely afternoon tea together, as the children sat on their own table to allow the