Mamma Mia stars attend London premiere
Meryl Streep and Cher reveal why they wanted to be in the new Mamma Mia film, as the movie premieres in London.
The cast spoke to BBC reporter Sophie van Brugen.
Meryl Streep and Cher reveal why they wanted to be in the new Mamma Mia film, as the movie premieres in London.
The cast spoke to BBC reporter Sophie van Brugen.