George Clooney splashed out $20 on a glass of lemonade. A group of young children on their spring break set up a lemonade stand near the set of the charitable star's latest movie 'Leatherheads' which he visited for a refreshing drink the other day. Carter Fontaine, aged ten, six-year-old Chandler and five-year-old Chase were selling glasses of lemonade for 25 cents. George came over and posed for pictures with the children's mother,Courtney, and her friends so she gave him the lemonade for free. But the 'Ocean's Thirteen' star insisted on paying and later sent someone over to the stall with a $20 dollar bill and refused to accept any change. Soon Chandler made a sign reading "George Clooney was here!" and proudly displayed it next to the trio's stall. George is starring and directing in the movie about the early days of professional American football. It is being filmed in North and South Carolina and also stars John Krasinski and Renée Zellweger. It is due for release in December.