The casting process is quite complex because Weiwei's film company is already quite famous. Once the casting news was released, an overwhelming number of people came to participate in the auditions.
Each version has a different director, corresponding to the language region, and they are all top-tier figures. After reading the script overnight, they communicated until the afternoon of the next day before taking a break, and were excitedly heading back to their respective countries in the morning to start casting.
Apart from the French-speaking lead actress being predetermined, casting in other regions had to start from scratch. Since each region's background story is different, it's necessary to choose actors who fit the script's vibe, making it an interesting and challenging task.
