EXCLUSIVE: Natalie Portman looks stunning while modeling plunging red gown for dreamy Dior beach shoot in Spain… amid ‘marriage woes’

Natalie Portman looked beautiful on Wednesday during a shoot on the beach in Spain.

The Oscar-winning actress, 42, modeled a sheer, flowing red dress with a plunging neckline as she frolicked barefoot in the sand while shooting a new campaign for Dior.

While surrounded by production staff and filmmakers, the Black Swan star – who looked somber as she stepped out without her wedding in Paris two days earlier – ran along the seafront.

At one point, Portman had jumped into the water before the shoot and emerged to wrap himself in a white robe.

For the shoot, she looked radiant with a minimal makeup look and messy beach waves.

Gorgeous dress: The Oscar-winning actress, 42, modeled a sheer, flowing red dress with a plunging neckline as she frolicked in the sand while shooting a new campaign for Dior

Glamorous: Natalie Portman looked beautiful during a shoot on the beach in Spain on Wednesday

Campaign model: For the shoot, she looked radiant with a minimal makeup look and messy beach waves

Campaign model: For the shoot, she looked radiant with a minimal makeup look and messy beach waves

During the shoot, she was seen beaming as she ran along the beach and splashed in the water.

Amid her busy schedule, Portman has faced trouble in her 11-year marriage to Benjamin Millepied amid cheating allegations.

Last month it was reported that the French producer, 46, had an alleged affair with climate change activist Camille Étienne and as a result there is speculation that the pair are heading for divorce.

Since then, both Portman and Millepied have been spotted without their wedding rings as they continue to co-parent their two children.

The longtime couple share son Aleph, 12, and daughter Amalia, six.

Earlier this month they reunited in the French capital and were spotted taking a walk with their two children.

The couple looked tense but appeared to present a united front amid swirling rumors about their marital problems.

In June, a French sales point called Voici shared an explosive report claiming Benjamin was having an affair with a 25-year-old climate activist named Camille Étienne.

Frolicking on the beach: While surrounded by production crew and filming, the Black Swan star - who looked glum as she stepped out without her wedding in Paris two days earlier - ran along the seafront

Frolicking on the beach: While surrounded by production staff and filming, the Black Swan star – who looked glum as she stepped out without her wedding in Paris two days earlier – ran along the seafront

Making a splash: At one point, Portman had jumped into the water for the shoot

Making a splash: At one point, Portman had jumped into the water for the shoot

Beaming: She happily splashed around in the water

Brunette beauty: During the shoot, she looked ethereal as she glowed and played on the beach

Beaming: She happily splashed around in the water. During the shoot, she looked ethereal as she beamed and played on the beach

Mid-shoot: The star appeared to be waiting for her next signal as she stood in the water

Mid-shoot: The star appeared to be waiting for her next signal as she stood in the water

Toes in the sand: Portman stood barefoot on the beach and held up her beautiful sheer dress

Toes in the sand: Portman stood barefoot on the beach and held up her beautiful sheer dress

Amazing: at one point she was up to her waist in water and turned around dramatically

Smiling: After taking the photo, she turned around and smiled proudly

Stunning scene: at one point she was waist deep in water and turned around dramatically. After taking the photo, she turned around, smiling proudly

People reported at the time that his romance with Étienne was “short-lived” and is now “over.”

A source also told the station that Millepied “did everything he could” to “get Natalie to forgive him and keep their family together.”

The insider also revealed, “He knows he made a huge mistake and he’s doing everything he can to get Natalie to forgive him and keep their family together.”

The source also said that Portman remains “incredibly private” because she “has no intention of playing this out in the media.”

“Her top priority is protecting her children and their privacy,” she added.

The couple first met on the set of Black Swan in 2019 and Portman immediately knew he was ‘the person’ for her.

Millepied was recruited to choreograph the film and train Portman in ballet dancing.

By the time filming wrapped, the couple had fallen in love and started dating.

Enjoying: At another point, she was spotted having fun with the production crew during another action shot

Enjoying: At another point, she was spotted having fun with the production crew during another action shot

Preparing: Later they went back to the water to film another take

Waiting: She seemed to be getting ready before running back into the water

Preparing: Later they went back to the water to film another take. She appeared to be getting ready before running back into the water

Strolling in the sand: She was also seen strolling in the sand with the production team by her side

Strolling in the sand: She was also seen strolling in the sand with the production team by her side

Elegant: During the shoot she only modeled the elegant dress and nothing else to show off her natural beauty

Elegant: During the shoot she only modeled the elegant dress and nothing else to show off her natural beauty

Quick touch-up: After getting out of the water, she quickly fixed her now dripping wet hair.

Quick touch-up: After getting out of the water, she quickly fixed her now dripping wet hair.

Staying busy: She did her best to work and keep busy amid her marital problems

Staying busy: She did her best to work and keep busy amid her marital problems

Another shot: She is seen walking back to the water several times, still in the now wet dress, to re-film the scene

Another shot: She is seen walking back to the water several times, still in the now wet dress, to re-film the scene

From the back: the beautiful designer dress hugged her figure well

From the back: the beautiful designer dress hugged her figure well

Running: She was seen at one point sprinting towards the water, her hair and dress flying wildly behind her

Running: She was seen at one point sprinting towards the water, her hair and dress flying wildly behind her

Wrapped: After shooting into the water, she emerged and dressed in a white robe

Wrapped: After shooting into the water, she emerged and dressed in a white robe

A year later, Portman and Millepied were engaged and were also expecting their first child together.

They welcomed their first child – son Aleph – in 2011. Soon after, they married in an intimate wedding ceremony in California.

Six years later they welcomed their daughter Amalia.

Their relationship plunged into despair when news broke of his alleged extramarital affair.