Filming in Vancouver, British Columbia on October 6, 1994, Jackie Chan broke his right ankle while attempting the scene where he jumps onto the hovercraft. Despite the injury, he was present at the premiere of Drunken Master II (1994) at the Vancouver International Film Festival that night. Later in the production of this movie, director Stanley Tong sprained his ankle, completing the movie on crutches. Françoise Yip also broke her leg while filming the scene where she rides a motorbike across the tops of parked cars. She insisted on returning to the set after her leg was plastered at the hospital. Two stuntwomen also broke their legs during the filming of the motorcycle chase.
The script called for a leap from the top of a parking lot to a fire escape on the floor below on the building across the street. As is his custom, director Stanley Tong attempted the stunt before asking any actors to do so. He tried it with the help of a cable harness, but quickly decided it would be safer without the harness. The landing point was not visible from the point where the jump began, so tape was placed on the take-off point as a guide. The jump was completed perfectly by Jackie Chan on the first attempt, doing his own stunts as is his custom. The jump was captured by four cameras.
The warehouse fight scene took twenty days to film, with Jackie Chan having to teach the local stunt players to fight "Hong Kong style".
In his autobiography, I am Jackie Chan: My life in Action, Jackie Chan talked about the initial difficulty of filming a movie in Vancouver, British Columbia that is set in New York City. The production team initially had to put up fake graffiti during the day, and take it all down during the evening, while simultaneously making sure that no mountains made it into the background. However, Chan decided that it was best that the production team focus on the action only, without worrying too much about scenery. Viewers have noted mountains in the background, which doesn't exist in the New York City landscape.