Brad Pitt wants joint custody

He is prepared to fight Angelina Jolie to obtain joint legal and physical custody of their six children.

Brad Pitt in November 2015. Picture: AFP

LONDON - Brad Pitt is prepared to fight Angelina Jolie to obtain joint legal and physical custody of their six children.

The Fight Club actor's estranged wife Angelina Jolie has sought joint legal, but sole physical, custody of their six kids, 15-year-old Maddox, Pax, 12, Zahara, 11, Shiloh, 10, and twins Knox and Vivienne, eight, in her divorce petition, which was filed on Monday, but the 52-year-old star isn't going to agree with her request he only gets visitation rights to their brood.

A source told TMZ Brad insisted, "There's no chance that's going to happen."

The insider claims Brad thinks Angelina, 41, is a "great mother" and he doesn't want to interfere with her ability to co-parent or hurt her in the divorce, but he won't allow her to "thwart" him.

It has been claimed the Changeling star filed for divorce due to her concerns about how Brad parented the kids, as well as worrying he has an anger problem and indulges too heavily in alcohol and marijuana consumption.

However, sources insist the Big Short star has "never" put his offspring in danger.

Brad has admitted he is "very saddened" by the demise of his 12-year relationship.

In a statement, he said, "I am very saddened by this, but what matters most now is the wellbeing of our kids. I kindly ask the press to give them the space they deserve during this challenging time."

Meanwhile, representatives for Angelina, who tied the knot with Brad in 2014, said she filed for divorce for the sake of her kids.

Her longtime manager Geyer Kosinki told E! News: "Angelina is doing what's best in the interest of taking care of her children. She appreciates everyone's understanding of their need for privacy at this time."

Whilst entertainment attorney Robert Offer added in a statement: "Angelina has filed for dissolution of the marriage. This decision was made for the health of the family. She will not be commenting, and asks that the family be given its privacy at this time."

BRAD AND ANGELINA DISAGREED ON PARENTING STYLES

Meanwhile, Brad Pitt and Angelina Jolie were reportedly having difficulties looking after their "hard to handle" children and often disagreed on what style of parenting would be best suited for their family.

Brad Pitt and Angelina Jolie reportedly disagreed over one another's parenting styles.

Brad, believes Angelina is far too soft with the kids and lets them do whatever they want, something she resented.

A source told DailyMail.com, "The children can all be a nightmare apart from Maddox. He's really, really sweet and nice. Angie believes everything the children tell her. They can do no wrong in her eyes, everything they say becomes the gospel truth."

"They're very hot and cold with all the staff. They're very physical and boisterous and hard to handle - especially because there's six of them. The eleven year old [Zahara], is the one who instigates it all."

"One of the team threw a towel which accidentally hit Vivienne and caused her to trip up. Then Zahara was instructing her what to tell Angie - to say she was eating a biscuit at the time and nearly choked because of it."

The claims come after a source revealed Brad has "always been a stricter" parent than his wife.

Of their different parenting styles, an insider recently said, "Brad has always been stricter. He has wanted the kids to have more structure."

"Brad will get frustrated sometimes and yell at the kids. Angelina always had a more relaxed attitude when it came to the kids. She definitely never yells."

Angelina's manager previously revealed the actress decided to file for divorce as she feels it is in "the best interests" of her children.

Her long-time associate Geyer Kosinki said, "Angelina is doing what's best in the interest of taking care of her children. She appreciates everyone understanding of their need for privacy at this time."