There are only four "American Pie" in the orthodox mainline, and there are three or four sequels with the title of this film, all of which tell the stories of relatives and friends such as Cousin Stifler, which is not bad. American Pie 4: American Reunion is an orthodox continuation of the story of four leading men. In this film, there will be several supporting characters with distinct personalities in the first three films, including Spanish exchange student Nadia and so on. However, when watching the disc, people feel nostalgic, just like our high school classmates' reunion.