This is A film clip of It's A Small World. The film was made by Disney in the 1970s, I think. As far as I know this is at Disneyland California in Anaheim. I dubbed in all the sound, this film was silent, Super 8mm.
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The Small World ride now must accommodate adults who frequently weigh north of 200 pounds, which it often cannot do. Increasingly, overweighted boats get to certain points in the ride and bottom out, becoming stuck in the flume.
Sorry. :(