Jessica Chastain Shimmers in Blue Sequins for “Memory ”Premiere at San Sebastián Film Festival

The Oscar-winning actress attended the event alongside 'Memory' costars Peter Sarsgaard and Merritt Wever

Jessica Chastain is looking chic in Spain!

The Molly's Game actress, 46, was at the 71st San Sebastián International Film Festival on Wednesday to promote her new movie, Memory, a drama that also stars Peter Sarsgaard and Merritt Wever.

The mom-of-two made a show-stopping entrance at the annual festival held at the Victoria Eugenia Theater, located in the picturesque Basque city.

Chastain's strapless Gucci gown featured a sweetheart neckline and dazzling layers of blue and white sequins. She teamed her look with gold platform Aquazzura heels and wore her long hair loose as she took selfies with fans.

Related: Jessica Chastain Wows with Platinum Blonde Hair at the 2023 Met Gala

Joining Chastain at the event was Memory director Michael Franco. The new drama — which Franco also wrote and produced — tells the story of Sylvia (Chastain), a social worker who lives a simple life with her daughter until an encounter with a former classmate has far-reaching consequences for both of them, according to the film's official synopsis.

Franco and Chastain recently attended the Toronto International Film Festival to promote Memory. At that event, Franco told IndieWire that some Hollywood industry people had hinted that Chastain may be difficult to work with after her 2022 best actress Oscar win for The Eyes of Tammy Faye.

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The 44-year-old director, who comes from Mexico City, recalled to the outlet how he was told Chastain may "show up and be a nightmare and be a diva," after she won her Academy Award.

“I told them, you don’t know half of it. She’s the opposite. She’s going to show up satisfied, happy, and be productive," he said.

But Chastain — who shares a son and daughter with husband Gian Luca Passi de Preposulo, 41, — told the the film industry website that nothing could be further from the truth.

"I’m not doing a movie to be pampered. If I want to be pampered, I’ll go to a spa. I’m doing a film to work and to be creative, and I don’t need to sit by myself in a trailer," she said.

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In Memory, Dopesick actor Sarsgaard stars as Saul, the man who sends Chastain's character's ordinary life into a tailspin. “Their surprise encounter will profoundly impact both of them as they open the door to the past,” the synopsis adds.

Following Memory's premiere at the 80th Venice International Film Festival in early September, Sarsgaard was presented with the award for best actor.

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