Keanu Reeves vomited "a couple of times" while shooting stunts for 'John Wick'.

Keanu Reeves stars in the money-spinning franchise

Keanu Reeves stars in the money-spinning franchise

The 60-year-old actor starred in the original 'John Wick' movie back in 2014, and Keanu has admitted that he relished the challenge of shooting the action scenes.

Speaking at an anniversary screening of the movie in Los Angeles, Keanu shared: "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!"

Ian McShane actually praised his co-star for pushing himself to his physical limits.

The 82-year-old actor said: "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.'"

Meanwhile, Eva Longoria recently revealed that she invested $6 million into the movie and helped to save it.

The actress - who doesn't actually appear in 'John Wick' - told Business Insider: "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?’"

Eva has made a healthy return on her initial investment - but she wishes she profited from the other 'John Wick' movies, too.

She said: "What I'm p***** 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."