10 Movie Mysteries That Will Likely Never Be Solved

10. Who Was Sophie's Real Father? - Mamma Mia!

Who doesn't love ABBA? In 2008, an impressive cast came together to bring the Mamma Mia! musical to the big screen, and while the movie didn't exactly set the world alight, it did revolve around a genuinely compelling mystery that is still unsolved to this day.

Amanda Seyfried's Sophie was getting married and wanted to invite her father to the wedding. The issue? She didn't know who her father was. After going through her mother's diaries, she narrowed it down to three candidates who were all invited to the big day under the guise that they were Sophie's father themselves.

Through the twists and turns of the movie, interspersed with spontaneous singing and dancing, there was no definitive answer as to who Sophie's biological father was. All three men, Harry, Bill, and Sam decided they were happy being one-third of a father to Sophie, which is lovely and heartwarming, but it does leave audiences with a big question.

Amanda Seyfried herself has previously said she hoped that Bill was Sophie's father, however, even the sequel didn't confirm what everyone wanted to know. The identity of her father wasn't really the point of the movie, but still, it would have been nice to know.