LITTLE Vivienne Jolie-Pitt has a plum role in mama An­gelina’s big-budget Disney movie “Maleficent” – but now the 4-year-old’s jealous brothers and sisters are demanding to become child stars too!

At first Vivienne’s siblings were just mildly envious of her big break, but their jaws dropped when they learned their little sis was getting paid a whopping $3,000 a week, say insiders.

“They look at it as a big allowance,” revealed a close source. “Her screen debut has caused a major rift in the family. Now they all want their own turn in the spotlight.”

VIVIENNE – who has the key role of young Princess Aurora in a new version of “Sleeping Beauty” – has so upset her siblings that they’re said to be nagging their parents: “Why did she get a big part in the movie and not me?”

But each of them has had an op­portunity to appear on film, though not in such significant roles, said the source. Zahara, 8, and Pax, 9, both have walk-on parts in “Maleficent.” And Shiloh, 6, has already appeared briefly in dad Brad’s 2008 flick “The Curious Case of Benjamin Button.”

Meanwhile Pax and big brother Maddox, 11, want to be action stars, and Vivienne’s twin brother Knox “just wants a film role now,” accord­ing to the source.

“All the kids are driving Brad and Angie crazy with ideas for movies they want to act in,” said the insider.

Maddox came close to being the first of the kids to cop a starring role – but his dreams were put on hold.

As The ENQUIRER reported in 2011, Angelina pushed to get him the lead in “Battling Boy,” a science-fiction epic being produced by Brad’s company.

“Angie and Brad felt that the superhero proj­ect was the perfect first step for Maddox,” said an insider. “They had hoped to begin film­ing in 2012, but it still doesn’t have a start date.

“Maddox is exasperat­ed at watching Vivienne getting a top-notch part first.”