Here we go again - Stellan Skarsgård is dropping hints that Meryl Streep could return in a possible third Mamma Mia movie. "Everybody can be brought back in the movies," Skarsgård, 74, assured Us Weekly in the 2026 Golden Globe Awards press room on Sunday, January 11. "In the movies, it's fantastic!" Streep's involvement in a potential Mamma Mia 3 has always been questionable since her character, Donna Sheridan, was killed off before the events of 2018 sequel, Mamma Mia! Here We Go Again.