She supposedly doesn't want to act as much anymore so she can focus on her lifestyle website GOOP instead; but on Tuesday Gwyneth Paltrow was seen rehearsing for a new movie, spotted on set in North Carolina.

The 44-year-old blonde beauty appeared to be going through lines for Avengers 4, given the co-stars she joined on location - namely Robert Downey Jr and Mark Ruffalo.

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Rehearsal: Make-up free Gwyneth Paltrow rehearses on set with Robert Downey Jr confirming she WILL star in Avengers 4 (and is that a new ring on her finger?)

What's that? Gwyneth was showing off a ring on her engagement finger but it's unknown whether this was for the part, an accessory or something more?

Though it has yet to be confirmed that the Oscar winner will be joining the Avengers action sequel, Gwyneth was seen rehearsing a scene with stars of the franchise Robert and Mark in Fayetteville.

The star, who plays Pepper Potts in the Marvel franchise, was dressed casually in a black tank top that showed off her tanned and toned arms and her slim waistline.

The Sliding Doors actress also had on white high-waisted slacks that flared out at the bottom and strappy black heels.

The Vogue favourite wore her long, blonde locks down in soft beachy waves and went make-up free for the run-through.

The ex of Coldplay rocker Chris Martin also appeared to have a ring on her engagement finger (the star has been dating American Horror Story producer Brad Falchuk for quite some time now) but it seems it was part of Pepper's costume.

Her man: The movie star has been dating American Horror Story producer Brad Falchuk for several years; she has two children with Chris Martin

There she is: Gwyneth Paltrow was seen rehearsing for Avengers 4 on Tuesday with costars Robert Downey Jr, left, and Mark Ruffalo, right, in North Carolina

Done: The 44-year-old blonde beauty said recently that she did not want to act much anymore as she prefers to focus on her lifestyle website GOOP

Stylish: The Emma actress also had on white high-waisted slacks that flared out at the bottom and strappy black heels

Hair hair: The Vogue favorite wore her long, blonde locks down and unstyled

Gwyneth chatted and laughed with her co-stars while out in an open field - both of whom made the Forbes highest paid actor list the same day.

Robert landed on the sixth spot with $48m earned in the last year while Mark came in at number 20 with $13m.

Yoga-toned Robert looked slender in his extremely casual clothes: the Less Than Zero vet had on an olive green sweatshirt over a light grey sweatshirt and matching grey trousers.

All together now: The ex of Coldplay rocker Chris Martin also appeared to have no makeup on as she chatted with her co-stars as well as one of her directors (second from left) and actor/director Jon Favreau (far left)

Ring: Oddly, she appeared to have a wedding band on her ring finger. The star has been dating American Horror Story producer Brad Falchuk for several years

The former bad boy of the 90s held on to his script as he stood with Gwyneth and Mark, who had on a black V-neck shirt and black jeans.

Jon Favreau and directors Anthony and Joe Russo were also with the cast.

Gwyneth has sparked engagement rumours after reportedly being seen with a 'huge ring' on her finger late last year.

According to a report from The Sun, the Shakespeare In Love actress was spotted with a ring on her finger at a party for her pal Jay Z.

Her film franchise: With Downey Jr in the poster for Iron Man 3 in 2013

Good pals: She began starring in the Iron Man movies with RDJ in 2008

Two much: Avengers 4 stars Robert and Mark as well as a long list of Marvel actors

Work: The former bad boy of the Nineties also held onto a script as he stood with Gwyneth

A source for the publication said: ' Gwyneth had a huge rock on her wedding finger that caught a few people’s eyes.

'Later she was introducing Brad to someone he didn’t know and referred to him as her fiancé. She seemed totally loved-up.'

Meanwhile, Avengers 4 stars Robert and Mark as well as a long list of Marvel actors including Scarlett Johansson, Chris Evans, Chris Hemsworth, Tom Hiddleston, Josh Brolin, Chris Pratt, Elizabeth Olsen, Paul Bettany, Tom Holland, Zoe Saldana, Benedict Cumberbatch, Evangeline Lilly, Karen Gillan, Anthony Mackie and Jeremy Renner.

Boyz in NC: Robert is on the left and Mark on the right; both were very dressed down

Early years: The stunner with Robert's Tony Stark in 2010's Iron Man II

It is intended to be the direct sequel to 2018's Avengers: Infinity War and has a tentative release date of May 3, 2019.

The film was announced in October 2014 as Avengers: Infinity War – Part 2.

Filming began in August 2017 at Pinewood Atlanta Studios in Fayette County, Georgia. It's shooting back-to-back with Avengers: Infinity War. Filming is scheduled to last until December 2017.

Gwyneth has been working on the Iron Man franchise with Downey for years.

She also appeared at the end of Spider-Man: Homecoming when Iron Man's Tony Stark proposed marriage to her.