Seyfried '100 per cent optimistic' on Mamma Mia! 3

Seyfried '100 per cent optimistic' on Mamma Mia! 3
Amanda Seyfried says the whole cast is enthusiastic about making a third Mamma Mia! 3 film happen. -AP

Amanda Seyfried is "100 per cent optimistic" a third Mamma Mia! movie will get made.

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