SAN FRANCISCO — Jerome Falk Jr. knew it would be tough to get a court to undo his famous clients’ settlement with Facebook. But the Howard Rice Nemerovski Canady Falk & Rabkin appellate specialist still boasted confidence — albeit measured — about his arguments in the case.

“I think it’s always an uphill battle for a party trying to get out of a settlement,” Falk said in an interview as his team was gearing up for oral arguments in Facebook v. ConnectU. “That said, I’ve won these cases before.”