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

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."