Keanu Reeves and Alexandra Grant had a supersonic date night!

The couple arrived at the premiere of their new animated film in Los Angeles Sonic the Hedgehog 3 at the TCL Chinese Theater on Monday, December 16.

Reeves, 60, looked dapper in a dark suit with a striped tie as he posed next to his 51-year-old girlfriend, a veteran visual artist, who wore a long-sleeved black dress with blazer fastenings at the front and silver details and a matching one glittering silver carried clutch.

Chat with Entertainment tonightThe actor, who plays the voice of the villain Shadow in the new film, raved about an evening with Grant: “We had a great time and it was very exciting and just nerve-wracking getting out in the car. It’s really special.” Being side by side.

After lovingly imitating a miracle sound, Reeves said when he saw his girlfriend all decked up for the event, “The heart just swells.”

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Reeves and Grant started out as friends and collaborators and decided to go public with their relationship in 2019 matrix The actor has been relatively open about spending time with his “sweetheart,” as he called Grant in a 2023 PEOPLE interview.

“We were connected. We smiled and laughed and giggled. “I feel great,” Reeves recalled of his last moment of bliss. “It was just really nice to be together.”

Additionally, Grant told PEOPLE in September 2023 that the “good news about falling in love as an adult” is that she had already established her own career when she and Reeves met. As she explained, “they pushed each other to build new roads.”

“Seeing the other person solve problems is inspiring, like, ‘Well, okay, this is a dead end.’ “How do I try the other one?” Grant said. “He is such an inspiration to me. He’s so creative, he’s so nice. He works so hard.”

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In addition to the addition of Reeves as Shadow, Sonic3 brings Jim Carrey as Dr. Robotnik, Ben Schwartz as the voice of Sonic and Idris Elba as Knuckles, as well as James Marsden and Tika Sumpter return in the latest adaptation of Sega’s video game series.

“Sonic, Knuckles and Tails reunite against a powerful new foe, Shadow, a mysterious villain with powers they have never faced before,” reads a synopsis. “With their abilities inferior in every way, Team Sonic must find an unlikely alliance in the hopes of stopping Shadow and protecting the planet.”

Speaking to PEOPLE at the premiere, Reeves revealed which superpower from the franchise he would most like to have in real life.

“Well, if it were sound Superpower, I’ll take teleportation,” he said.

Sonic the Hedgehog 3 hits theaters on December 20th.