https://en.wikipedia.org/wiki/Rebel_Moon:_Part_One_%E2%80%93_A_Child_of_Fire

The film also began development as a Star Wars film that Snyder had pitched to Lucasfilm shortly after the sale of Lucasfilm to The Walt Disney Company in 2012. This pitch was to be a more mature take on the Star Wars universe. Following the acquisition, the project was redeveloped

In a universe controlled by the corrupt government of the Mother World, the moon of Veldt is threatened by the forces of the Imperium, the army of the Mother World controlled by Regent Balisarius. Kora, a former member of the Imperium who seeks redemption for her past in the leadership of the oppressive government, tasks herself to recruit warriors from across the galaxy to make a stand against the Mother World's forces before they return to the planet.

just throw all the popular franchises in a blender basically