In the movie, each shot of the streets of Boston is captured, each scene is captured, and the real images of the bombing and the screen shots made by the crew are inserted in turn to allow the audience to feel their way to the scene of the incident. Although the film was adapted from real events, unless you were a witness to the Boston Marathon bombing, you couldn’t even find out which plots in the movie had changed the actual events. Many times you will feel that this sense of realism is more like a documentary. The charm of this city in Boston is not only shown in the lens of the oldest buildings in the United States, the powerful four major league teams, but each and every one of the people who lived and now lives in this city. Everyone is determined to fight terrorism. The resolute and yearning for a better future. The episode interspersed with the appearance of a large number of Boston locations and Chinese. The rush runner was used by every Chinese student who read a book in Boston. Every film was run alongside the Charles River. Colorful and realistic add color.