Improper Channels (1981)

Synopsis
Alan Arkin plays a hapless architect named Jeffrey Martley, separated from his sprightly writer wife Diana (Mariette Hartley) and his wise-beyond-her-years five-year-old daughter Nancy (Sarah Stevens). When Nancy is injured in Jeffrey's camper, she is taken to the hospital where a misunderstanding leads doctors to believe she is the victim of child abuse. An imperious social worker, Gloria Washburn (Monica Parker), compiles a computer dossier on Jeffrey, and Nancy is taken away from him and put in an orphanage. When Diana finds out the situation, she gets back together with Jeffrey in order to try to get their daughter out of the orphanage. ~ Paul Brenner, All Movie Guide