Ok, another lost movie title, late 70's early 80's
When I was a kid I saw it several times, but I can't remember the title.
So I remember this much. There's 2 kids, who sneak on a boat. They find out about this message in a bottle from some relative. So they go on this crazy advernture, sliding down snowy mountains, meeting people, and at the end they find some guy who's been in a cage for like 23 years saying stuff like, "I be smart too!" and pointing to his nose. If that doesn't sound too crazy, anyone think they've seen it?