In an early sequence, four of the family go swimming in a pond while Katy settles down on a log to read. The log is dry when she lies down. A few minutes later the rest of the family climb out of the pond over the log and drip water on the log. The log is already wet when they do this showing that there has been at least one previous take.
Or, it's possible that there has been some passage of time during which family members have gotten out of the pond to warm up and then reentered. As Katie begins to read the camera movies in her book then fades to father swimming. This could imply that passage of time and would explain the wet log.
Or, it's possible that there has been some passage of time during which family members have gotten out of the pond to warm up and then reentered. As Katie begins to read the camera movies in her book then fades to father swimming. This could imply that passage of time and would explain the wet log.
When Katie and André begin swimming in André's pool, there is no inner tube in the water. After swimming around for a little while, Katie swims up through the middle of the tube and André pulls her back under the water.
During the animated sequence Tom the cat and Jerry the mouse are both wearing green swim fins. Jerry falls into a clam which closes on him. It opens immediately and Jerry is no longer wearing the fins. A second later he has the fins on again.
During the animated sequence, when Katy and the octopus are sitting together at the table, watch carefully when she moves to remove the octopus's tentacle from her shoulder - her hand passes straight through the tentacle instead of over it.
During the cartoon sequence, the background changes suddenly when the octopus grabs Katie by the ankles.