In "Police Story", Chan was doing a stunt when and where he fell off from about 5 to 6 stories through a series of window canopies. Chan nearly became disorientated about halfway through down. Instead of landing on upon his feet, Chan fell in a head-down position. His arms became caught in the material of the last canopy. He landed on his head first and his head was then forced on to the side as he could not break his fall up with his arms.