During the filming of "Bill & Ted Face 3," Keanu Reeves surprises fans with a heartfelt gesture.

Keanu Reeves arrives at a hand and footprint ceremony honoring him at the TCL Chinese Theatre on Tuesday, May 14, 2019 at in Los Angeles. (Photo by Willy Sanjuan/Invision/AP)

Keanu Reeves has given some of his fans a moment they will never forget after they left a sign out in their garden ahead of the actor’s arrival to film Bill & Ted Face the Music.

Filming on the nostalgic sequel is currently underway in Louisiana, with Reeves reprising his title role of Thedore Logan, alongside Alex Winter as Bill S. Preston.

Co-writer Ed Solomon tweeted to recount a special surprise Reeves gave to a particular fan, who had left a sign on their lawn welcoming the 54-year-old to their town.

The sign read ‘you’re breathtaking’, in reference to a comment shouted at Reeves by a fan during his recent appearance at the E3 video game expo, which subsequently became a meme.

Solomon wrote that Reeves hopped out of the car and signed his autograph on the sign.

Reeves also stopped to chat to Stacey Hunt and her children, as well as posing for a selfie with the delighted family.

Hunt told CNN: “What you read about him being such a great person with a great heart is true.

“At least that’s what I think from my few minutes with him.”

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She said that it was her 16-year-old son Ethan who suggested they leave the sign out in order to welcome Reeves to the neighbourhood.

This is the latest account of Reeves being most excellent to his devotees, after he was praised for his “respectful” photos with female fans.

Alex Winter and Keanu Reeves attend the premiere of “Bill and Ted’s Bogus Journey” on July 18, 1991. (Photo by Ron Galella/Ron Galella Collection via Getty Images)

Bill & Ted Face the Music is the belated third entry in the cult trilogy, which began in 1989 with Bill & Ted’s Excellent Adventure and continued with 1991’s Bill & Ted’s Bogus Journey.

The new film will see the title characters receiving a visit from the future, warning them to create a song in order to save the universe. Just normal stuff for Keanu.