'Chasing the Dragon' trivia and fun facts

First time

First collaboration between Donnie Yen and Andy Lau.

Date Change

Originally conceived in 2014 by Jing Wong, with the intention of Nick Cheung and Wai-Keung Lau as lead actor and director respectively. But due to scheduling conflicts, the project was put aside.

Reunion

First collaboration between Donnie Yen and Jing Wong in 20 years.