The Fresh Off the Boat star shared a note on Twitter on Friday, speaking out about the upcoming Chinese blockbuster -- and most expensive film to date in China's studio history -- for its casting of white actor Matt Damon as the main protagonist.
"We have to stop promoting the racist myth that only a white man can save the world," Wu explained. "Our heroes don't look like Matt Damon."
The 34-year-old actress added that Damon's casting shouldn't be blamed on any one individual, but rather should highlight the "repeatedly implied racist notion that white people are superior to [people of color]."
"We like our color and our culture and our own strengths and our own stories" she added. "We don't need you to save us from anything ... Why not TRY to be better?"
In response to some criticism that she may be placing blame, Wu wrote, "For the millionth time it's NOT abt blame. Not blaming Damon, the studio, the Chinese financiers. It's not about blame, It's about AWARENESS."
The Great Wall, directed by Chinese filmmaker Zhang Yimou, premieres this December in China, and next February in the United States.
Yimou defended his film's Hollywood elements last week in an interview with EW, saying, "What I really want is to bring Chinese color and cultural background to the worldwide audience through a film language that they are familiar with."
Meanwhile, this is not the first time Wu has been vocal about calling out racism in Hollywood.
Watch the video below to see the actress' response to Chris Rock's Asian joke at the 2016 Oscars.