chunk: In 1967, Larry Gopnik (Michael Stuhlbarg) is a professor of physics living in St. Louis Park, Minnesota. His wife, Judith (Sari Lennick), tells him that she needs a get (a Jewish divorce document) so she can marry widower Sy Ableman (Fred Melamed). Meanwhile, their son Danny (Aaron Wolff) owes twenty dollars for marijuana to an intimidating Hebrew school classmate. He has the money, but it is hidden in a transistor radio that was confiscated by his teacher. Daughter Sarah is always washing her hair and going out. Larry's brother, Arthur (Richard Kind), sleeps on the couch and spends his free time filling a notebook with what he calls a "probability map of the universe".