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Muscle Grandpa was released on September 15, 2021 but we couldn't find it on any streaming service yet. Rights can change — try again later.
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More from Lee Byung-joon · Lead actor
More from Cha Sun-hyung · Co-star actor
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Muscle Grandpa — streaming FAQ
Which OTT platform streams Muscle Grandpa?
Muscle Grandpa isn't streaming anywhere in United Kingdom yet.
Is Muscle Grandpa on Netflix?
No, Muscle Grandpa is not on Netflix in United Kingdom as of September 2026.
Is Muscle Grandpa on Amazon Prime Video?
No, Muscle Grandpa isn't on Amazon Prime Video in United Kingdom right now.
Where can I watch Muscle Grandpa for free?
Muscle Grandpa isn't streaming in United Kingdom yet, so there's no way to watch it free at the moment.
What is the OTT release date for Muscle Grandpa?
Muscle Grandpa hasn't started streaming in United Kingdom yet. Based on the typical 6–8 week theatrical-to-streaming window, we estimate it will arrive around November 3, 2021. This is a prediction, not a confirmed date.
