Stellan Skarsgård Gives PRICELESS Reaction to Potential Mamma Mia 3 (Exclusive)

Stellan Skarsgård chats with ET’s Nischelle Turner about ‘Dune: Part Two,’ in theaters on March 1. The actor details his eight-hour transformation into his role as Baron Vladimir Harkonnen in the film. Plus, Stellan reacts to a potential ‘Mamma Mia 3’ return!