Complex sentence: The film would also feature appearances from Henrik von Sydow and Clas S. von Sydow, the real sons of star Max von Sydow, who play Abner's son Micah at different ages.
Split into simpler sentences: The film would also feature appearances from Henrik von Sydow and Clas S. von Sydow, the real sons of star Max von Sydow. They play Abner's son Micah at different ages.