Continuity mistake: After receiving the sheriff's phone call, when older Walter drives toward his uncles' house, in the exterior shot the rearview mirror is gone, only to suddenly appear in the interior shot and when he gets out of the car. (01:37:20)
Continuity mistake: When Walter opens the chest its contents are covered by a smooth layer of sand. When he reaches in in the next shot there are already tracks made by his fingers. Then he removes the sand from Jasmine's photograph that we can see her face, but in the next shot the face is mostly covered again. (00:12:25)
Continuity mistake: In the scene where the skeet shooting salesman is explaining his wares, the trunk is open. In the immediately preceding shot, the trunk is closed.
Continuity mistake: When loading the Lion Chow, Walter's overall strap on his right shoulder is unhooked. When the shot cuts back, it's hooked. (00:41:00)
Continuity mistake: Before Walter's mother drives off she asks Walter to give her a big smile. While he is trying very hard the camera cuts back and forth between him and his mom. When the camera is on him a rather strong wind moves his collar and his hair, and when it's on her there's no wind at all. (00:06:45)
Continuity mistake: When the airplane delivery man hands the manual to Hub, the piece he was just unloading changes from standing upright to horizontally between shots. (01:04:10)
Continuity mistake: When Walter is viewing Hub's first sleepwalking episode, both he and the dogs are all looking at Hub, but when the camera cuts to the back of Walter and the dogs, the little white dog is suddenly looking toward the boat dock. (00:14:05)
Answer: An accident. They were inexperienced pilots trying dangerous barnstorming stunts. A fitting end for two adventurers afraid of nothing.
Brian Katcher