Which Walt Disney production was based on Jules Verne's 1868 novel "Captain Grant's Children," The Misadventures of Merlin Jones or In Search of the Castaways?
The Misadventures of Merlin Jones: The Misadventures of Merlin Jones is a 1964 Walt Disney production starring Tommy Kirk and Annette Funicello. In Search of the Castaways (film): In Search of the Castaways is a 1962 Walt Disney Productions feature film starring Hayley Mills and Maurice Chevalier in a tale about a worldwide search for a shipwrecked sea captain. In Search of the Castaways (film):  The film was directed by Robert Stevenson from a screenplay by Lowell S. Hawley based upon Jules Verne's 1868 adventure novel "Captain Grant's Children".
In Search of the Castaways