Principal Photography Begins for Film Sequel to Mamma Mia! Gotham Rex 7 years ago Principal Photography Begins for Film Sequel to Mamma Mia! Mamma Mia! Here We Go Again will be released in summer 2018. Share: Mamma Mia! Film Sequel Will Hit Theatres Next SummerDateMay 19, 2017In relation toPlaybillCher Joins Mamma Mia! Movie SequelDateOctober 16, 2017In relation toPlaybillCher’s Role Revealed for Mamma Mia! Here We Go AgainDateOctober 18, 2017In relation toPlaybill