Muscle Grandpa (2021) is a Drama, Family film that follows a buddy series of "Dukgyu," a 68-year-old making weird poses in front of the gym mirror, wearing a sleeveless t-shirt, and his grandson "Donghyun," who just doesn't get him. Muscle Grandpa is not currently listed with streaming providers in your selected region, but availability can change over time. Fans of drama movies may also want to explore similar titles below.