Miriam Margolyes (Harry Potter series) thinks Stellan Skarsgård is a good actor, but she didn't care for his film Mama Mia. New episodes of #TheGrahamNortonShow premiere Thursdays at 11pm on BBC America. #AlexanderSkarsgård #MiriamMargolyes #TheGNShow #BBCAmerica Subscribe now: http://bit.ly/1aP6Fo9 Twitter: http://twitter.com/bbcamerica Facebook: http://www.facebook.com/bbcamerica Tumblr: http://bbcamerica.tumblr.com Instagram: http://instagram.com/bbcamerica Snapchat: http://snapchat.com/add/bbcamerica_tv Visit our official website to watch full episodes and more: http://www.bbcamerica.com/