Watch Mamma Mia! Movie at http://watchmammamia.blogspot.com Meryl Streep leads an all-star cast in the feature-film adaptation of the beloved musical that has been seen by more than 30 million people in 160 cities and 8 languages around the world. Bringing the timeless lyrics and melodies of iconic super group ABBA to movie audiences, Summer 2008 is the season for "Mamma Mia!"