"Mamma Mia!" debuted in the U.K. with $13.2 million and in Australia greeted with $5.2 million.In Scandinavia, where Abba originated, saw high returns with $1.6 million in Sweden, $1.3 million in Denmark and $635,000 in Norway."Mamma Mia!" opens in the US next week and also expands into Austria, Germany and Holland.