The coronavirus lockdown has drained Robert De Niro’s finances, the actor’s lawyer has told a court in Manhattan.Speaking via a Skype call on Thursday as he fought to dismiss his estranged wife Grace Hightower’s emergency order to double her monthly American Express card credit limit to US$100,000, the movie star confessed he has been forced to make a series of cutbacks.Hightower’s lawyer told a judge that De Niro had cut her monthly American Express allowance in half, prompting his attorneys to