Gramps Is a Great Guy! (4.9)
Movie · 1987 · 1 h 32 min · Comedy
Nightclub musician Sebastian, discovers one evening with surprise that he is supposedly the grandfather of a boy with the same name as him.
Directed by: Michel Drach
Starring Guy Bedos, Marie Laforêt, Valérie Rojan, Isabelle Mergault, Fabien Chombart, Élisabeth Vitali, Aladin Reibel
We don't know where to watch it in the US.