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 the younger cast members; who aren't all that memorable, Hayley Mills (Mary) is the standout if I had to pick one. The film hasn't aged beautifully in regards to the effects, a load of the scenes look rather awful nowadays but I can always let that pass in these older films; it's still worth noting, that's all. Away from that you have a few musical numbers, the ones featuring Paganel are pretty good. I feel giving it less than this rating would be harsh, I definitely didn't enjoy it but I can see how others might.