In the movie Mamma Mia ! Here We Go Again , the name of Sam 's fiancee is Lorraine .
Back in the past , Donna and Sam are enjoying a whirlwind romance ( `` Andante , Andante '' , `` The Name of the Game '' ) , until Donna discovers a picture of Sam 's fiancée Lorraine in his drawer .
Mamma Mia! Here We Go Again