I thought I'd give this a watch before watching the Disney remake, given they are both on the latter's streaming service. I like 1940's 'Swiss Family Robinson', though there are many ways it could be improved upon which is what I hope the 1960 production does. This one, made by RKO Pictures, is enjoyable. The action sequences look decent enough, the acting is solid while the premise is very intriguing. I rate the film almost from start-to-finish, the moments which make up that last part disappoints unfortunately - the ending doesn't really make sense. Thomas Mitchell (William) and Freddie Bartholomew (Jack) are my standout characters, both of those two give good performances. Edna Best & Co. are all fine, though. It's with Best's character that makes the finale poor in my eyes. I won't spoil what happens, but it doesn't work in my opinion - especially in connection with what else occurs. Those criticisms of mine stop me from placing this higher. However, it is still an entertaining flick from 1940.