The “Dunlap” family finds itself at a difficult point, as novelist “George” (Albert Finney) and his wife “Faith” (Diane Keaton) are navigating their failing marriage before he abandons them—leaving her and their four daughters behind for “Sandy” (Karen Allen), who is also dealing with the aftermath of a previous relationship and an intense infatuation with him. "George" demonstrates a degree of selfishness, desiring …