Keanu Reeves on Nov. 3 (left) and Reeves in ‘John Wick’ (right). Photo: Jon Kopaloff/Getty; Everett

Keanu Reeves pushed himself to the point of sickness in order to pull off intense stunts in John Wick.

At a special 10th-anniversary screening of the action movie held Nov. 3 at the AMC Century City in Los Angeles, Reeves, 60, and his costar Ian McShane, 82, sat for a panel discussion with co-director Chad Stahelski and producer Erica Lee.

Moderator Grae Drake asked Reeves how far he was pushed to play the titular hitman who gets revenge on the Russian mobsters responsible for the death of his dog.

Reeves said the experience was a “gift,” adding, “I had so many wonderful teachers and guidance and worked with so many talented actors, actresses and stunt people in the sense of it’s such a dance and collaboration and cooperation. So there’s a couple of times where you throw up or puke or whatever, but that’s what makes it good!”

A scene from ‘John Wick.’.Everett

McShane also praised Reeves’ willingness to go the extra mile.

“He pushes the envelope all the time. So when your leading actors says, ‘We’d like do another one,’ and it’s raining for the seventh day in a row outside … and you’re standing there, whatever. And you go, ‘Well, Keanu’s doing it. Here we are. Here we go,’ ” said McShane.

Grae Drake, Keanu Reeves, Erica Lee, Ian McShane and Chad Stahelski on Nov. 3.Jon Kopaloff/Getty

The movie was a hit, and launched three sequels, which have collectively made more than $1 billion globally. The films have also become famous for their violent and involved fight scenes, including one in which Keanu’s Wick shoves a sharpened pencil in the eye and ear of a foe.

When moderator Drake quipped that “nobody’s ever looked at a pencil the same way again,” Reeves responded: “You shouldn’t. Because they work!”

In an interview with Business Insider Oct. 31, Desperate Housewives alum Eva Longoria confirmed she stepped in and helped save the movie with a $6 million investment after financing fell through just as filming was set to begin.

Keanu Reeves and Ian McShane at the Nov. 3 screening of ‘John Wick.’.Jon Kopaloff/Getty

“An agent, and he wasn’t even my agent, he called me and said, ‘You got money, you should put your money here.’ And I didn’t even know how a movie was made. I was like, ‘What do you mean gap financing?’ ” she said.

Longoria said she has since more than doubled her original investment — and is annoyed at herself for not staying involved with the sequels.

“What I’m pissed off about is I wasn’t connected to the rest of them. This was a one-time thing. That was the gamble. But that was my only mistake, not being attached to all of the films,” she said.