Dicaprio and Scorsese filmed an all-nighter at Trump Tower. And where else to film “The Wolf of Wall Street”? . . . Readying her Philly tour, Streisand hired a girl singer to do the entire concert so she could sit in the house directing lights, sound, an usher’s blood pressure, whatever . . . Oy. Britney versus Christina, Mariah versus Minaj. Comparatively, the presidential combat’s like a waltz.

DEEPAK Chopra and son Gotham came over — each drank water — to discuss their 74-minute film “Decoding Deepak,” opening Friday at the Quad.

Deepak explained his “science of life concept, ayurveda. It’s how to live a life of fulfillment.”

Gotham: “Amidst turmoil, it’s hard to find stillness. A massage, reading, music, exercise, run in the park, a good sleep.”

Deepak: “To still the mind one needs meditation. It’s best mornings or late afternoon. This is not unlike yoga or martial arts. Most people spend their time in dreams. The past or the future. Not in the present.”

Gotham (anglicized from his name Gautam), Columbia graduate, lives in LA, married to a Chinese-American, took 14 months to film this in India, Japan, Thailand, Sedona: “It’s so people will understand my father. He’s unlike Lady Gaga or Kim Kardashian, but he is iconic. Despite skeptics, they should know him as I do. Not what the world thinks of him. What I think of him. There’s honesty. Different points of view.

“He’s now a great-grandfather but was not present in my growing up. He didn’t come to soccer games. So it’s not all flattery.”

NYC resident Deepak: “Tensions between father and son, who has strong feelings, are there. It’s edgy, paradoxic, contradictory, fast-paced. I said I wouldn’t interfere. I was . . . accommodating . . . My daughter, a better student, attended Brown. I told my children to play. Find their passions. Read comic books. Not be overly concerned or stressed about academics.

“I’m successful because of what I believe in. Independence, not indifference. Forget the celebrity stuff. I came here as an immigrant and made a life. Organized religions have become frozen, obsolete. It’s the Big Bang and a dark hole.”

About his 66th book, a novel, “God: A Story of Revelation,” Chopra says: “It’s the spiritual experiences of Job, Socrates, St. Paul, Einstein, two Christian saints during the Salem witch burning, and it talks of ‘Does God exist?’ ”

So, now that he’s on Twitter and Facebook, might someone ever play him in a major theatrical movie?

Said Deepak instantaneously: “It should be George Clooney. We’ve met. He seems sober and grounded.”

JACKSON Hole selling a huge bronze hand-crafted exact replica of the Smithsonian’s Wells Fargo mail stagecoach for $69,000. A Wells Fargo exec’s dickering for it . . . Coming book, “Clean Cuisine: An 8-week Anti-Inflammatory Nutrition Program That Will Change the Way You Age, Look & Feel” (and may we live longer than it takes to read the title). The foreword’s by “Today” show’s Natalie Morales.

BILL O’Reilly on his newest killer gold mine “Killing Kennedy”: “My haters will nitpick, but new facts were double-sourced. To document details, this was sent in advance to Kennedy experts like FBI guys questioning Marina Oswald and covering the assassination, but not to family members because we didn’t want emotion.”

His next, for whom Holt paid eight figures, is out come Christmas.

AT Re:Mix Lab, Hyundai unveiled three art cars, including one that featured a DJ booth in its trunk . . . Mitt Romney must be feeling bullish. Super event planner Larry Scott catered one of his meetings . . . Sue Simmons loves Upper East Side’s Italian restaurant Canaletto. She showed two days in a row. Maybe the second time was because she’d left her raincoat.

MIDNIGHT at the “Trade of Innocents” premiere, the Creative Coalition sang a (not totally harmonious) happy birthday to Mira Sorvino, UN Goodwill Ambassador to Combat Human Trafficking . . . Attention: 2012’s most tweeted, social commented TV? The Grammys — 13 mil. The Oscars? Only a lousy 3.8 . . . Rumor: Betty White might pose for Playboy. The magazine just has a few wrinkles to iron out.

WHEN last we spoke, Andy Williams told me his predictions for the future: “A tenor will be elected president and ‘The Andy Williams Christmas Show’ will be transmitted annually to all planets with cable.”

By the way, did any of his obits mention he dated Ethel Kennedy after her husband’s death?

SO this ambassador, into Social Security’s silver-haired age, had a computer glitch. His grandson, whose room looks like Mission Control, clicked a few buttons and — problem solved. Said 11-year-old Eric: “It was an ID 10-T error.” Asked Grampa the Ambassador: “What’s that?” Grinned the kid: “Write it down, and you’ll figure it out.” So on a piece of paper His Excellency the envoy wrote down: “ID10T.”

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