From the Mixed-Up Files of Mrs. Basil E. Frankweiler (1973)

After running away from their home in the suburbs, Claudia Kincaid (Sally Prager) and her younger brother, Jamie (Johnny Doran), set up camp in Manhattan's expansive Metropolitan Museum of Art. When Claudia becomes obsessed with discovering the origins of one particular statue, it leads the siblings to the home of the woman who donated the piece, the eccentric and elderly Mrs. Frankweiler (Ingrid Bergman), who forms a close bond with the inquisitive children.