Liu had reportedly posted a message on the Chinese social media site Weibo, which translated as: “I also support Hong Kong police.
Controversy over Mulan erupted last year, when its star, Liu Yifei, voiced support for police in Hong Kong, who have been accused of using excessive force against protesters.
Their movement has been supported online by many in Hong Kong, including the prominent protest leader Joshua Wong.
In turn Thai protesters have also backed up their peers in Hong Kong and Taiwan.