Gwendoline Christie Makes Powerful, Emotional Tribute to Victims of Bastille Day Attack at 'Star Wars' Celebra

The 37-year-old actress held an emotional moment of silence ahead of the celebration's 'Rogue One' panel.

The Star Wars Celebration kicked off Friday in London, England, and while thousands of fans gathered to celebrate all things Star Wars, another recent event weighed heavy on the minds of many.

Gwendoline Christie -- who plays Captain Phasma in the newest Star Wars trilogy, and was on hand to moderate the panel for Rogue One: A Star Wars Story -- led a powerful moment of silence in tribute to the victims of the recent terror attack in Nice, France.

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"I'd like to just take a moment. It's impossible to sit here today at celebration, particularly at an event called Celebration, without thinking of the terrible events that happened not far from here," Christie began, ahead of the Rogue One panel.

"On behalf of everyone, our hearts go out to the people in Nice and France. I know there are so many people here," she said, before being interrupted by applause. "I'd like us all to take a moment to send our heartfelt thoughts and prayers."

After the moment of silence, Christie looked up from the crowd, welcomed by a rendition of the French national anthem, La Marseillaise. Thousands of celebration-goers and fans joined together to pay tribute to the tragedy with song.

According to ET's Ashley Crossan, who was at the panel covering the Star Wars Celebration, the tribute was so powerful it brought many to tears, and ended in overwhelming applause.

After her emotional tribute, it seems Christie was able to relax and enjoy her experience at the celebration.

"Thank you @starwars #StarWarsCelebration #RogueOne for having me moderate the panel!!!!!!!!!!" she posted to Twitter, along with a photo of herself with the Rogue One cast. "It was INCREDIBLE!!"

Rogue One: A Star Wars Story
hits theaters Dec. 16.

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See how more celebs have kept Nice in their thoughts and prayers in the video below.