Right before Jonny talks to the owl, the Quest party stands together facing it. They cast long shadows in the moonlight. The moon would have to be over and behind their left shoulders for their shadows to be in front and to the right of them, yet when they look straight ahead at the owl, a full moon is clearly seen behind it.
As Jonny goes off to scrub the skunk smell off Bandit, Race tells him to stay upwind. He should have said downwind. Going upwind would guarantee that the others could smell Bandit the entire time, which isn't their desire.
There's not enough vocal difference between the voices of Race Bannon and White Feather (both suppled by Mike Road). Using the same actor with a distinctive voice continuously makes it seem as if Race is playing dress-up and trying to fool the boys.
When Race says "Look! I think he got away," it's Dr. Quest's voice.
Jonny and Hadji escape their captors riding a log down a flume. The lumberjacks shoot out part of the flume below, sending Jonny and Hadji airborne before they continue on, landing in the rest of the flume. This is not possible. Not only should the log they ride fall immediately toward the ground, but were it possible to land back in the flume further down, the water will have drained away and not been there to float the log, bringing Jonny and Hadji's escape to a thudding halt.
Whenever the the word "loup-garou" is spoken, the silent p is enunciated.