Robert Schwartzman is the nephew of Francis Ford Coppola, cousin of Nicolas Cage, Sofia Coppola, Roman Coppola and Christopher Coppola, and grandson of Italia Coppola (née Pennino) and Carmine Coppola (the source of his old stage name) and his niece, Gia Coppola. His brother is Jason Schwartzman, lead singer of the band Coconut Records (also an actor and former drummer of the band Phantom Planet) and his half-siblings are Stephanie Schwartzman and cinematographer John Schwartzman. Schwartzman is of Jewish descent on his father's side and of Catholic Italian descent on his mother's side. Schwartzman attended Windward School in Los Angeles, California and
Sofia Coppola met director Spike Jonze; they married in 1999 and divorced in 2003. In an official statement, Coppola's publicist explained that the divorce decision was reached "with sadness". It is widely believed that a minor character in "Lost in Translation" is based on Jonze, as Coppola stated after the film's release, "There are elements of Spike there, elements of experiences." Coppola married musician Thomas Mars on August 27, 2011, at Palazzo Margherita in Bernalda, Italy. They met while producing the soundtrack to "The Virgin Suicides". They have two daughters: Romy (born November 28, 2006), whose name is an homage to Coppola's