Gramps Is a Great Guy! [126661] Released: 1987-08-22 Revenue: $0 Budget: $0 Profit: $0 Runtime: 92 mins Popularity: 0.357 Vote Average: 4.5 Vote Count: 5 Overview: Nightclub musician Sebastian, discovers one evening with surprise that he is supposedly the grandfather of a boy with the same name as him. Cast [7] Guy BedosSebastien Marie LaforêtLouise Valérie RojanViolette Isabelle MergaultZaza Fabien ChombartLe petit Sébast Élisabeth VitaliSusy Aladin ReibelFrançois Trailers