Mama Mia, Papa Sinatra?

IT'S A TESTAMENT to the virility of Frank Sinatra that he's been gone for 15 years and he may still be having children.

Credit Mia Farrow, who has had one interesting life.

The daughter of an Australian film director and a well-known Irish actress, she was one of seven siblings, she meditated with the Beatles in India and later worked as a U.N. Goodwill Ambassador.

At age 21, Farrow married Sinatra, who was 51. (Oddly, her adopted daughter Soon-Yi Previn would later marry her former lover Woody Allen when she was 25 and he was 62.)

At 23, Farrow starred in 1968's "Rosemary's Baby" for Roman Polanski. During shooting, she was served divorce papers by Sinatra. Less than two years later, Polanski's wife, Sharon Tate, was murdered by Charles Manson and his "family." Nine years later, Polanski would be accused of raping a teenage girl and flee the country.

In between Sinatra and Allen, Farrow was hitched to composer Andre Previn, greatly angering his former wife, Dory Previn.

A year after she split with Previn, Farrow started seeing Allen, who cast her in 12 of his films (including "Zelig," "Broadway Danny Rose" and "Hannah and Her Sisters") during their time together. That relationship lasted a little more than a decade, when Allen ran off with Soon-Yi.

Throughout her years with Previn and Allen, Farrow would adopt 11 children, two since deceased, and give birth to four more. She also has nine grandchildren, so you don't want to be at the bottom of her Christmas list.

One of the children she gave birth to, reported to be the biological son of Allen, was Satchel O'Sullivan Farrow, who later changed his name to Ronan Farrow after the debacle with Woody and Soon-Yi and allegations by his sister Dylan that Allen (her father via adoption) had molested her.

Now, 45 years after Farrow and Sinatra divorced, and 25 years after Ronan was born, Farrow is telling Vanity Fair that "possibly" Woody isn't Ronan's father at all - that Ronan's daddy could be Ol' Blue Eyes himself.

The conception would have occurred when Sinatra was 72 and seemingly happily married to Barbara Marx. But Farrow says that she and Frank continued a decades-long, on-off affair after their divorce.

"We never split up," she tells Vanity Fair, which must be happy news for Previn, Allen and Marx.

For years, the rumor mill claimed Sinatra was Ronan's daddy, but this is the first time Farrow herself acknowledged the possibility that Ronan, who looks nothing like Allen, may be Young Blue Eyes.

Alas, there's never been a DNA test to prove what seems rather obvious from the photos.

Frank, you dog.

* The Los Angles Times reports that movie producer Ryan A. Brooks has sued Warner Bros. and Clint Eastwood's Malpaso Productions, claiming they swiped his idea for the 2012 baseball movie "Trouble with the Curve."

In his 120-page copyright-infringement complaint, Brooks said there was a vast conspiracy to deny him and his company, Gold Glove Productions, proper credit for the screenplay for the movie.

"This case is about a conspiracy to steal the body, structure, theme and soul of a unique, original, copyrighted screenplay from a production company and its owner," the suit says.

The complicated, detail-laden suit asks for relief in "tens of millions of dollars," or far more than the movie actually made.

* Donald Trump is thinking about adding Plum Island to his real-estate portfolio.

The 843 acres off the coast of Long Island (and an exciting suspense novel by Nelson DeMille) house a laboratory that studies infectious animal diseases that could imperil the nation's livestock. Congress voted in 2009 to close the aging lab and build a new one in Manhattan, Kan.

It does seem kind of fitting for Trump to own a property that studied foot-and-mouth disease.

* British rock group Lostprophets has announced it is disbanding, months after lead singer Ian Watkins was charged with 20 sex offenses including raping a baby, conspiring to sexually assault a child and making indecent images.

Watkins denies the charges but disbanding still seems like the smart play.

Carnegie Hall canceled last night's season opening concert by the Philadelphia Orchestra and violinist Joshua Bell due to a stagehands strike.

The International Alliance of Theatrical Stage Employees and Carnegie Hall have been in contract talks since mid-2012.

Carnegie Hall said the dispute centers on the union's demand for jurisdiction over the Education Wing that's set to open next year.

* Minnesota Orchestra conductor Osmo Vanska resigned Tuesday amid a labor impasse that has dragged on for more than a year as management pushed for deep cuts to musicians' salaries.

The Finnish maestro released a statement saying he was giving notice of his immediate resignation from the orchestra he has led for 10 years to world-class status.

* New York City Opera said Tuesday it is shutting down and filing for bankruptcy protection after seven decades as a fixture on the metropolitan cultural scene.

The company announced Sept. 12 that it needed to raise $7 million by the end of that month, but came up millions short.

Junior to and often feistier than the Metropolitan Opera, City Opera was a spawning ground for top opera talent that included Beverly Sills, Placido Domingo, Renee Fleming and Samuel Ramey.

But City Opera was derailed by a series of bad decisions by its board.

"[Its] demise is the fault of people with a lot of money but no common sense," said Alan Gordon, national executive director for the American Guild of Musical Artists.

Oh, Mr. Gordon, you could be speaking about so many companies and organizations.

- Daily News wire services contributed to this report

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