SCREEN star Sydney Sweeney steals the show at the glitzy UK premiere of her latest movie.

The Euphoria actress, 27, walked the red carpet for new thriller Echo Valley in an elegant pale blue dress alongside co-star Julianne Moore, 64.

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The European premiere took place at BFI Southbank, London, yesterday.

It comes as Gigi Paris — ex-girlfriend of Sydney’s former co-star Glen Powell, 36 — brought 2023 cheating rumours between the pair back to life.

Gigi said she took the option of saying: “No, I’m actually not OK with this, and I’m walking away.

“That’s what I decided to do.”

Sydney is one of the most in-demand women in Hollywood, after TV show Euphoria — for which she is currently filming a third series — put her name in lights six years ago.

Now, she is also taking the leading role in a new biographical film about US female boxer Christy Martin.

Director David Michod said: “Sydney trained her butt off to play the part.

“The beauty of Sydney is she turned up every day with her tail wagging, ready to go.

“No matter how tough it was, she was like a ray of sunshine.”

Meanwhile Sydney has just cleaned up by turning her used bathwater into limited edition bars of soap.