Maurice Chevalier and Wilfrid Hyde-White are very good, but 'In Search of the Castaways' didn't quite capture my imagination.
I mostly like the adventure elements, as they cross land and sea in search of castaways. Despite that, I never properly felt attached to the story as the aforementioned isn't stitched together well with the characters and their motives/feelings. It's also paced too slow, at least for me.
As noted, Chevalier (Paganel) and Hyde-White (Lord Glenarvan) are solid in their respective roles, if only due to their amusing moments both together and on their own with... read the rest.
Ridiculous set-bound Disney adventure with Hayley Mills
In Scotland, a sister (Hayley Mills) and her little brother team-up with a French professor (Maurice Chevalier), a shipping magnate (Wilfrid Hyde-White) and his son (Michael Anderson, Jr.) to search for the siblings’ missing father, a sea captain. Their journey first takes them to Patagonia, South America, where they have misadventures in the Andes of Chile and the Pampas of Argentina. But, eventually, they realize they must travel to Australia and New Zealand to find the missing castaways.