Donna, played by Meryl Streep, was written off in "Mamma Mia! Here We Go Again" to serve the narrative's emotional depth and progression. The film explores themes of loss and legacy, focusing on Sophie, Donna's daughter, as she navigates her own journey while remembering her mother. The decision to have Donna pass away was also intended to provide a poignant backdrop for the story, allowing for flashbacks that highlight Donna's life and relationships, ultimately celebrating her character's impact and the bonds of love that endure despite loss.

"Mamma Mia! Here We Go Again" is a musical romantic comedy and a sequel to the 2008 film "Mamma Mia!" The story intertwines the present and the past, focusing on Donna's (Meryl Streep) journey as a young woman in the 1970s, exploring her relationships with Sam, Bill, and Harry. Meanwhile, in the present, her daughter Sophie (Amanda Seyfried) is preparing for the grand reopening of the hotel while coping with the loss of her mother. The film features a nostalgic ABBA soundtrack, celebrating love, friendship, and the bonds between generations.

You can watch "Mamma Mia! Here We Go Again" on various streaming platforms. As of now, it is available for rental or purchase on platforms like Amazon Prime Video, Google Play Movies, YouTube, and Apple TV. Additionally, it may be available on subscription services such as HBO Max or Netflix, depending on your region. Always check your local listings or streaming services for the most current availability.

Meryl Streep does appear in "Mamma Mia! Here We Go Again," but her role is significantly reduced compared to the first film. In this sequel, her character, Donna, is primarily featured in flashbacks that explore her younger years, played by Lily James. The story focuses more on Sophie, Donna's daughter, and her journey. Streep's limited presence is due to the narrative structure, which emphasizes the past and the new generation rather than a central role for Donna in the present storyline.