The film "Smile Circle" was directed by Pu Jian, the master tutor of China Communication University, which fully reflected the social welfare in the process of shooting and screening. Famous singer Lin Yilun, movie stars Huo Siyan and Wang Luyao, sports star Sang Lan and Macau singer Huang Weilin, as well as star members of the Olympic Volunteers' Heart Orchestra, such as Wang Jiayi, the host of beijing communication radio Radio's "Smooth Road" and Nie Yijing, the host of Beijing TV's "Live Beijing", all actively participated in the film performances as volunteers, vividly demonstrating the great enthusiasm of all sectors of society to participate in the Olympic volunteer service. At the same time, the film also invited representatives of ordinary volunteers from all walks of life, such as college students, foreign friends, the disabled, the elderly and primary school students, to participate in the filming, which fully demonstrated the style of volunteers in the times.

The film closely combines the background of the Beijing Olympic Games, takes the connotation of the five-color "smile circle" of Olympic volunteers as the chain of structural film stories, and tells the touching stories of people from all walks of life actively participating in volunteer work and making efforts to contribute to the Olympic Games through humorous expressions and innovative narrative methods. Zhu Wen, a white-collar worker, and her husband, Liang Zhiping, live an ordinary city life, but due to the pressure of work, they become nervous and unfamiliar. Zhu Wen is depressed because she can never make a plan. What bothers her even more is that her husband travels frequently. Du Mei, a colleague, introduced Zhu Wen to volunteer at Xiangshan Senior Apartment on weekends, but Zhu Wen refused. At the weekend, Zhu Wen accidentally remembered Dumet's introduction after quarreling with her husband and came to Xiangshan Senior Apartment. She was deeply touched by how volunteers got along with the elderly, and an unknown Mrs. Shen left a deep impression on her. After careful consideration, Zhu Wen decided to adjust her husband's lifestyle after returning home. At the weekend, asparagus, led by volunteer drivers, came to the apartment for the elderly again. She and Dumei played in Xiangshan all day. Someone told her about Mrs. Shen's past and decided to help her through this difficulty. The next day, it was the last time that Zhu Wen submitted the planning case, but Zhu Wen suddenly decided to take a day off. She took Mrs. Shen to a school, where she met her granddaughter who had not seen her for a long time. That night, Asparagus finally completed a satisfactory plan. Her husband, Liang Zhiping, came home and saw the radiant Asparagus preparing a sumptuous dinner. Zhu Wen told Liang Zhiping that this is a day full of commemorative significance.