Suddenly Seventeen is a 2016 Chinese fantasy romance drama film starring Ni Ni, Wallace Huo and Darren Wang. It is the directorial debut of Zhang Mo, Zhang Yimou's daughter. It was released in China by Le Vision Pictures on December 9, 2016.

Ni Ni is a Chinese actress best known for portraying Yu Mo in the 2011 film The Flowers of War, directed by Zhang Yimou; and Ling Xi in the 2019 television series Love and Destiny. She is considered to be one of the “New Four Dan Actresses” by Southern Metropolis Daily.