Celebrity | Arpad Busson Uma Thurman, Ex Fight Over 2-Year-Old Arpad Busson sues for custody of daughter By Evann Gastaldo Posted Oct 15, 2014 10:40 AM CDT Copied Uma Thurman and Arpad Busson are seen before the Nobel Committee's banquet at the Grand Hotel, Oslo, on Dec. 10, 2007. (AP Photo/Scanpix Norway, Sara Johannessen) Uma Thurman's ex-fiance is suing her for custody of their daughter Luna, 2. Arpad "Arki" Busson yesterday filed an emergency order to gain custody; the Manhattan court papers are sealed. "It is unfortunate that this very private discussion regarding Mr. Busson's visitation rights and his participation in decision making has been made public," Thurman's rep tells Page Six. "However, we are optimistic that a fair agreement for both sides will be reached out of court." The couple split—for the second time—in April, and Busson is now dating actress Kristin Scott Thomas. (Meanwhile, a Real Housewives star's "explosive" custody trial has kicked off.) Read These Next Sienna proves herself to be a very, very good dog. Three hikers jumped into a waterfall and never resurfaced. Millions of student loan borrowers could see their paychecks docked. Runner to attempt what was once thought impossible. Report an error