Cuba Gooding Jr., who will star on Broadway in “The Trip to Bountiful,” was spotted at Union Square sports bar The Royal doing a costume change in real life over the weekend. Fun-loving Gooding was spotted dancing at the bar and removed his shirt after someone spilled a drink on him. Spies said he then changed into one of the Royal’s own staff T-shirts. The “Jerry Maguire” actor was then spotted “doing handstands at his table” and “dancing and flirting up a storm.” He even told security to “back off” so he could wade into the crowd and take pictures “with literally everyone.” On Sunday Gooding watched the Oscars with pals at a party hosted by Lavo partner Rocco Ancarola.