PICTURE EXCLUSIVE: Angelina Jolie, 40, debuts THREE new tattoos on her back as she continues to direct Khmer Rouge film in Cambodia 

Angelina Jolie already has about a dozen tattoos on her body that she has been collecting since she was a teenager just getting her start in Hollywood.

But the 40-year-old Oscar winner is far from done with inking herself up, which she proved over the weekend.

On Sunday the wife of Brad Pitt debuted three more stamps as she was on the set of her new film, the war drama First They Killed My Father, in Cambodia.

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Look at what's new: Angelina Jolie debuted three new tattoos on her back when in Cambodia on Sunday. There are two ancient markings (top center and far right) and a Yant known as Paech chaluaek (center, bottom)

At work: The 40-year-old Oscar winner is directing the drama First They Killed My Father

Not wearing much: Jolie had on a silky tank top that showed off a lot of skin and several of her tattoos; she also wore red strings on her right wrist and her wedding band

The star was overseeing scenes shot in the Angor Watt Temple complex in Cambodia. She has been directing the saga all winter.

All three of the new marks are on her back, joining previous tattoos that say Know Your Rights, a traditional Thai tiger and Cambodian writings that have already been in place for years.

The new markings seemed to be done this year as they have not been seen on the red carpet yet.

Almost done: Jolie has been filming her new epic in Cambodia for several months already and is using mostly Cambodian crew

Good things come in threes: These are the three new markings on her back; two of them (top and right) are ancient Thai Buddhist symbols and mantras, which are thought to provide protection. The other one, a box, is a Yanta; there are joined by a dozen others

Old pal: The top center one and far right one are believed to have been at the same time in January by Bangkok-based artist Ajarn Noo Kanpai

Consistent: Kanpai also worked with Jolie in 2003 on her shoulder blade and in 2004 on her tiger. The artist uses an old method of inking by hand, not a machine

Now she has a lot of ink: Jolie already had about a dozen tattoos before she asked for more

This is what her back USED to look like: Jolie with only two tattoos on her back in 2014

The new tattoos include two ancient Thai Buddhist symbols and mantras, which are thought to help provide protection.

One looks like a temple while the other looks like a series of symbols. 

They are believed to have been at the same time in January by Bangkok-based artist Ajarn Noo Kanpai. He also worked with Jolie in 2003 on her shoulder blade and in 2004 on her tiger. The artist uses an old method of inking by hand, not a machine.

Bold: Jolie has said she likes to mark her body with things that mean something to her

Stylish: While on set, Jolie went braless as she wore a spaghetti strap black satin tank top made by Katie Holmes' old design company Holmes & Yang

She sure knows how to dress light: The top did an excellent job of showing off her new markings

Hat's off to her: She paired it with a long black skirt. Jolie also wore a floppy cream colored hat to keep out the sun

Orange you glad you were cast?: There were several actors dressed as monks

The third tattoo is a box with symbols in it, and rests in the center of her back.

It is thought to be a Yant known as Paech chaluaek, which is a symbol of good deed. Chants are said to be performed after the tattoo is done so to help further the good deeds.

This seems to go in line with Angelina's UN efforts to help refugees around the world.

According to Australia's Woman's Day, Brad also got a new tattoo when Jolie got her two markings from Kanpai.

ANGELINA'S COLLECTION OF INK 

So far Jolie has gotten over a dozen tattoos. Here are the ones we only know about:

Her early ink: A look at the tiger on her lower back

Know your Rights on her neck

This Gothic letter tattoo between her shoulder blades says "Know Your Rights". It's the title of a song of her favorite band.

Buddhist writings on her shoulder

This tattoo on her left shoulder blade is a Buddhist Pali incantation written in Khmer script, the language of Cambodia.

Arabic script on her right arm

This Arabic script tattoo on Jolie's right arm means 'Determination.' It covers up the abstract lines tattoo she had done together with her ex Billy Bob Thornton.

Roman number 13 on her left arm

This tattoo on her left underarm is the Roman number 13. Later she had V MCMXL added to the tattoo. 13 May 1940 is the date when Winston Churchill said: 'I have nothing to offer but blood, toil, tears and sweat.'

Tennessee Williams quote on left arm

This tattoo on her left arm is inspired by the words of Tennessee Williams: 'A prayer for the wild at heart, kept in cages.'

Cross on her stomach

This cross tattoo covers the little dragon with the blue tongue she had done in Amsterdam. Next to it is a phrase in Latin: 'Quod me nutrit me destruit,' meaning 'What nourishes me, destroys me.'

Rune style mark on her wrist

This rune style tattoo on Angelina's wrist is the letter h. It's either for ex boyfriend Timothy Hutton or her brother, James Haven.

Numbers on her arms

These numbers are the geographical coordinates (longitudes and latitudes) from the locations where her children first entered her life. She added Pitt later.

Tiger tattoo on lower back

This 12-inch long Bengal tiger tattoo on her lower back was done in Bangkok in 2004.

Lines on her right arm

This abstract lines tattoo design on her right arm is a custom tattoo created by herself and Billy Bob Thornton.

Japanese symbol on left shoulder

This tattoo on Jolie's left shoulder blade is the Japanese symbol for Death.

Asian etchings on inside of left arm 

The ink appears to be in the style of the Southeast Asian sak yant style of tattooing, which is often constructed with lines of script, geometric patterns and animal shapes.

Ancient Thai Buddhist symbols on her back

Design has both swirl designs and writings 

Ancient Thai Buddhist mantras on her back

Text that runs up and down on right side of her shoulder

Yant on center of back

Known as Paech chaluaek, which is a symbol of good deed. Chants are said to be performed after the tattoo is done so to help further the good deeds. The tattoo is a box with symbols in it

His was a line from a Bob Dylan song that read: 'We live, we die but I know I'll be with you.'

The etching is believed to be a romantic note to his wife.

The publication added that Kanpai used the same ink for both tattoos, to further bond the couple. 

In early December, Angelina showed off another new tattoo on her forearm when at the Cambodia Film Festival in Phnom Penh.

With the ink clearly visible on the inside of her left arm, a new addition to her ever-growing collection of body art.

All dressed up: Jolie and Pitt at the premiere of By The Sea at the 2015 AFI Fest in Hollywood in November

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Complete with a thin, intricate outline in black ink it is thought the tattoo is an homage to the thousands who lost their lives during the country's Khmer Rouge reign, as she is currently in the country working on a film about the atrocities.

The ink appears to be in the style of the Southeast Asian sak yant style of tattooing, which is often constructed with lines of script, geometric patterns and animal shapes. 

While on set of First They Killed My Father on Sunday, Jolie went braless as she wore a spaghetti strap black satin tank top made by Katie Holmes' old design company Holmes & Yang.

Wait, there's more: In early December, Jolie showed off another new tattoo on her forearm when at the Cambodia Film Festival in Phnom Penh. With the ink clearly visible on the inside of her left arm, a new addition to her ever-growing collection of body art

The top did an excellent job of showing off her new markings. She paired it with a long black skirt. Jolie also wore a floppy cream colored hat to keep out the sun.

First They Killed My Father is based on the 2000 book First They Killed My Father: A Daughter of Cambodia Remembers.

It's a non-fiction account written by Loung Ung, a Cambodian author and survivor of the Pol Pot regime. It is a personal tale of her experiences during the Khmer Rouge years

Jolie seems to be doing well after a difficult few years with her health.

In May 2013 she announced she had a double mastectomy to prevent a cancer scare. Her mother Marcheline Bertrand died from cancer in 2007 at the age of 56 after a long battle with cancer.

In March it was reported the Mrs And Mrs Smith star also had her ovaries removed.