Despite this, the Nobu co-founder will continue to pay his wife a whopping $1 million per year until one of them dies - or she remarries - in alimony (pictured in 2017).
Hightower claims that De Niro is worth $500 million, but his attorney Caroline Krauss says that his estranged wife's extravagant lifestyle is making things worseIn 2019 alone, she reportedly spent $1.67 million (£1.2 million), most of it on a $1.2 million (£860,000) diamond from a high-end New York jewellersRocky: Robert and Grace were married in 1997, split in 1999, then got back together, renewed their vows in 2004 before he filed for divorce in 2018 (pictured in 2014)She said the income from his next two films will be devoted to paying off this debt, which in 2015 was revealed to be $6.4 million (£4.6 million)