More than ten years ago, there was a movie about Japanese high school students setting off super fireworks. What's its name?

Five centimeters per second. In this film, the hero Xiong Fei Musashi University left the heroine's dream city and went to work far away. Before he left, they made a huge fireworks together and planned to show it at the summer festival. However, because the hero left the city, the plan failed to come true. A few years later, the hero returned to the city and met the heroine again. On a date, they finally realized their plan and set off huge fireworks. Makoto Shinkai is a famous Japanese animation director and screenwriter, born in 1973. Representative works include 5 cm per second and Your Name. ","son of the weather "and so on. He has won wide acclaim for his beautiful painting style and profound emotional description, and has a large number of fans in Japan and all over the world. His works have been recognized by Japanese and international film awards for many times, which has made great contributions to the development and promotion of Japanese animated films.