A tough, gritty, extremist movie’s coming. It’s titled “Olympus Has Fallen.” It stars Morgan Freeman, Angela Bassett, Gerard Butler, Aaron Eckhart, Dylan McDermott, Melissa Leo.

It’s chilling. Terrifying. May Dennis Rodman see it. It deals with his close and dear personal friends, those North Koreans who, in this film, invade the White House and take America’s president hostage.

“Eckhart plays the president kidnapped by North Korean terrorists,” said Angela Bassett. “I’m head of the Secret Service, McDermott and Butler are Secret Service agents, Melissa’s Secretary of Defense.

“The plot’s scary. It gives uncomfortable moments. But it’s the truth about what goes on. It depicts the absorbing intelligence at the world’s command and how it makes history. As the story unfolds, there’s a high body count.

“Parts are so frightening and absorbing because you know it’s real. You know it could happen. It’s pushing human lives who are behind the ability to push nuclear weapons.

“I’m in this movie, and I know what went on behind the scenes making it, but in the audience sitting there seeing it, I was on the edge of my seat.

“A large group of specialists guided the project along with cool heads. The unfoldment was complex. This is their life’s job. And they did plenty of legwork. They were right there all the time on the set.”

Former previous ex prior basketballer Dennis Rodman, whose career is now zero? Those nice little metal studs in his face light up when seeing his close and personal best friend, the fat pygmy who rules from Pyongyang with an iron head. Dennis, your hole in one to you. And to good chum Kim Jong Un — jong you.

FACEBOOK’s No. 2, Sheryl Sandberg, has been on every TV thing but “Animal Planet” hustling her book “Lean In.” M. Bloomberg even tossed her a party because “Someone asked me to.” There, Ray Kelly got quizzed about Sheryl calling him foul-mouthed. She wrote he used the F-bomb to her three times. Negative. He doesn’t speak that way.

Asked about it, smiling Ray just shrugged. He may have thought of an appropriate curse but never uttered it.

IN the immortal words of Seymour Confucius: “If you’re bad, you’ll go to hell. If you’re real good, you’ll go to heaven — and hell on the weekends.”

IN four years, Hillary gave but one Fox interview on US soil. Others were from abroad. Allegedly — I’m using the squeaky clean “allegedly” — although this is mumbled to me by one who “allegedly” knows — the controlling White House administration limited Fox News interviews in America. Unfortunately, they cannot limit the mouths or memories.

SPEAKING of someone who can’t be limited, Henry Kissinger was in the hospital. Now out, he’s attending parties with an assistant and a cane. “I’m fine now,” he told me. “Perfect. I feel great.” And he looked it . . . Friday. SoHo. Mercer Hotel lobby bar. Harrison Ford, Chelsea Clinton, Brian Grazer having late-night drinks . . . So, if you’re into a tabby’s mojo, comes “Cat Daddy,” a book in May by the goateed tattooed ex rock ’n’ roller on TV’s “My Cat From Hell,” Jackson Galaxy.

YOU think you’re maybe a little off? Be it known Woody Allen’s producer sister, Letty Aronson, told one Palm Beach driver: “Skip all tunnels.”

PAY attention. There exists the Real Deal, some $3 magazine. Subhead: “New York Real Estate News.” I am studying its Vol. II No. 3 March 2013 copy.

It is not the real deal. N-O-T. It is notttt!

Alongside Page 12’s Corcoran ad runs the top-to-bottom column “Editor’s Note.” The supposed brain writing this is the editor. Not some theoretically witless intern. The theoretically witless editor. Prideful, his work boasts his printed name Stuart Elliott plus his handwritten signature, which won’t trip off the tongue of anyone in journalism.

The big-brane editor announces me dead. Or, worse, fired.

Heading my obit “Only in New York,” he drones about sludge, garbage, putrid water and the Gowanus Canal in which someone not as gracious and kindly as myself might hint he belongs. The lead paragraph in this sludge, garbage and putrid water begins:

“Only in New York, kids. That was the slightly hokey catchphrase of former New York Post gossip columnist Cindy Adams in chronicling the city’s social scene. But it definitely applies to real estate here.”

Burbling on he regurgitates this Only in New York line of the former columnist who was in the New York Post.

Past tense. That “was” my phrase? And I’m a “former”?

Lawyer Barry Slotnick responded, informing him the only thing “late” about me is how I pay my legal bills — but I am still with us.

So, whilst this crack writer has me residing in Woodlawn, I retain sufficient breath to suggest he find some job suitable to his talents — like collecting the sludge, garbage and putrid water of the Gowanus.

Only in New York, kids, only in New York.