Of all the memorable quotes in the original Matrix, perhaps the most memorable is, “Woah, I know kung fu.”;

In the movie, it was a computer program that taught Keanu Reeves kung fu. In reality, it was Tiger Chen, one of the film’s many stunt men.

Nearly 15 years after The Matrix, Reeves and Chen have re-teamed for the Man of Tai Chi, which played as part of the Midnight Madness section of this year’s Toronto Film Festival, but this time they’ve switched places—Chen is now front of the camera, and Reeves, for the most part, is behind it.

The movie, which marks Reeves debut as a director, tells the story of a martial arts expert (played by Chen) who is forced to fight in an illegal underground tournament by a powerful businessman (played by Reeves). The movie was filmed in Beijing and Hong Kong and is mostly in Chinese.

As Chen explained to ET Canada“s Sangita Patel, injuries on set were quite common. “I got hurt a lot. But I got used to it,”; he said.

One martial arts move that’s featured in the film will be familiar to fans of The Karate Kid—the crane stance. “That’s the move!”; Reeves enthused. “But what does he do? Crushes them! The crane!”;

Tune in to ET Canada tonight for Sangita Patel’s full interview with Keanu Reeves and Tiger Chen.