In season 3, episode 5: Martin, played by actor Paul Reiser, watches the 1982 movie Diner on tv. The scene he is actually watching shows a much younger Paul Reiser in his very first movie role.
Reportedly Netflix wanted longer seasons from season 2 on, but Michael Douglas insisted to continue doing 8-episode seasons.
Alan Arkin plays the role of Norman Newlander. Alan Arkin's spouse in real life is Suzanne Newlander Arkin.
Sandy Kominsky drives a Mercedes-Benz W111, Model 280 SE Cabriolet, circa 1969. Only 1,390 were built.
Haley Joel Osment and his sister Emily Osment are both actors in this show. Haley plays Alan Arkin's grandson Robby. Emily plays Theresa, Michael Douglas' acting student who lives in a van with her boyfriend.