Roots was an American sci-fi film released in 2016. It was directed by Chris Nolan and starred by Chris Worthington, Hayley Atwell, Hugo Wavin, and others. The film tells the story of a group of extraterrestrials who discovered Earth and established contact with the local humans in the process of finding a new home. However, their arrival alerted the local rulers, and a fierce war between alien life and Earth's civilization broke out. " Roots " received high praise from the film critics and audience as one of Nolan's representative works. It used unique visual effects and profound philosophical thinking to explore the relationship between humans and extraterrestrial life, as well as the nature and meaning of life. At the same time, the movie also presented the complexity and complexity of human nature, which inspired the audience.