Be-Bop-A-Lula
비밥바룰라 (original)
Fun comedy about four grandfathers in their 70s who seize the chance to explore their bucket lists after being devoted to their families for decades.
Starring Park In-hwan, Shin Goo, Goo Shin, Im Hyun-sik, Kim In-kwon, Seong Byeong-sook, Jung Young-sook, Choi Sun-ja
Watch "Be-Bop-A-Lula" on Tubi TV released in 2018. It's a comedy movie, and has a rating of 7 out of 10 from Imdb which is usually fine for this kind of movie, and is currently available to watch for free.