"Mamma Mia 2" is produced by Universal Pictures of the United States. It is a sequel to the 2008 song-and-dance comedy movie "Mamma Mia". This time, all the original cast members of the first film will return, and the adaptation of the stage play in the film will be Based on the songs of the famous Swedish band ABBA. The sequel will focus on the love story between Sophie (played by Amanda Seyfried) and her mother Donna (played by Meryl Streep) when they were young-pregnant Sophie has been questioning herself whether she can raise children alone until she is greatly inspired by the experience of Donna raising herself alone. When she was young, Donna will be played by Lily James, and Cher will also appear in the film as Sophie's grandmother, Ruby.