Fireworks lit up the night sky at the Bird's Nest National Stadium during a full rehearsal of the opening ceremony of the Beijing Winter Olympic Games on Saturday night.  The whole rehearsal is completely in accordance with the ceremony of the opening day of each link run, the rehearsal personnel is about half of the opening day.  

The length and structure of the opening ceremony of the Beijing Winter Olympics have been adjusted to take temperature, epidemic prevention and other factors into account. The opening ceremony lasts about 100 minutes.  Zhang Yimou, who directed the opening and closing ceremonies of the 2008 Beijing Olympics, will be the general director of the opening and closing ceremonies of the 2022 Beijing Winter Olympics and Paralympics.