De NIRO & EX SLUG IT OUT IN DIVORCE DOUGH DRAMA

Aging acting icon tired of 24/7 grind to pay Grace’s bills

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FAMED “Raging Bull” actor Robert De Niro is getting pummeled by estranged wife Grace Hightower’s free-spending ways, spilled sources, who said his bitter spouse is intent on taking the aging legend for every penny possible as their nasty divorce drags on.

The “Casino” star’s lawyers argued in court that greedy Grace’s extravagant lifestyle has forced the movie mobster to take every job he can snag, causing the 77-year-old to toil 12-hour days, six days a week.

What’s more, they claimed De Niro’s Nobu restaurant business has hit hard times and his tax bills to Uncle Sam are piling up.