Simplify the following text for a Grade 7 native English-speaking person.
Original: The battle was depicted in the movie Zheng Chenggong 1661 ( Traditional Chinese : é æ å 1661 ) , which ended in Koxinga 's victory over the Dutch .
Simplified: The battle was shown in the movie Zheng Chenggong 1661 , which ends with Koxinga 's victory over the Dutch .