I BUMPED into these two absolute legends at Silverstone the other day.

Keanu is filming a Disney documentary about Brawn GP and Button’s incredible F1 title triumph in 2009.

Motors Editor Rob Gill got the low down from Jenson and Keanu at Silverstone

Keanu said: “You’ll know the circumstances that went into that season. The financial crisis.

“Our story is about Honda withdrawing from F1 and Ross Brawn who had joined Honda a year and a half earlier.

“There were redundancies. They didn’t have a lot of finances. They became an independent team.

“How did they race a world championship?

“It’s certainly a people story. It’s about passion.

“I think some of themes and windows that we’re taking people into with this story, whether you’re a race fan or if you just like watching a human story and the struggle to overcome, hopefully it’ll serve that up.”

Button put on his old Brawn GP racesuit for the cameras.

Keanu added: “It still fit.

“Jenson was very generous with his time and with his thoughts.

“He shared a story with us and the impact that had on him. How it drove him.

“I don’t want to put words into his mouth but the impression was that he wanted to win for himself but also his father.

“I think we saw that passion in Brazil when he won the championship.”

Button said: “What I love about this is how in-depth these guys have gone and how much they know about the project and that exciting year.

“It’s 13 years ago. I think about winning the world championship quite often.

“But I don’t think about the details and what happened and what didn’t happen through the season, so it’s been lovely. It’s been really nice.”

The documentary should be ready this time next year.