The film’s final credits give a “special thanks” to a public security bureau in Turpan, Xinjiang, which runs China's "re-education" camps where Muslim Uighurs are held in detention, according to the BBC.
It also thanks a publicity department that is reportedly responsible for producing state propaganda in the region.
Hong Kong pro-democracy activist Joshua Wong tweeted that viewers watching Mulan are "potentially complicit in the mass incarceration of Muslim Uighurs".
Activist Shawn Zhang also asked: "How many thousands of Uighur were put into camps by Turpan Bureau of Public Security when filming Mulan there?"
China is believed to have detained more than a million people from mostly Muslim ethnic minorities in the province of Xinjiang since 2017. One Muslim woman who escaped from a state “re-education” camp in China said inmates were gang raped, subjected to torture and medical experiments and forced to eat pork.
China has dismissed the claims of human rights abuses as "fake news".
The Independent has contacted Disney for comment.
Mulan has already been the target of a boycott after its lead actor, Liu Yifei, publicly supported Hong Kong's police, who have been accused of violence against pro-democracy protesters in recent months.
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