Goofs

While they are in the canoe, Tom, Jerry and Dan start to spray each other with water and Jerry's clothes change between shots.

Flower and Butterfly have hairy legs because they are "all natural", but when one of them hands Jerry the radio, their legs and armpits are shaved.

When the sheriff finally finds the boys near the end of the movie, he pauses to light a cigarette. A second later, the cigarette has disappeared.

After Tom's arm is sewn up and they are trying to get away, Tom sits out in the rain without a trace of a wound on his left arm.

When the canoe has flipped and the guys are trying to keep together, their shirts are life vests. When they're safe again, the life vests turn back to shirts.

When the guys are in the tree with the girls, they call for help on a CB radio. The bad guy hears and responds to them on an FRS radio. This is impossible since the CB works in the 27 MHz range, and the FRS radio works in the 440 MHz range.

Fish viewed at the outset of the journey are incorrectly identified as brown trout. They are rainbow, identified by the splash of color along their side. Not a goof: Tom constantly makes up "facts."

Tom says shining the salmon is an old Cherokee trick, but the Cherokee lived nowhere near were any kind of salmon would go. Not a goof: Tom constantly makes up "facts."

When running through the pot field, Jerry sees the kid version of Billy and Billy asks Jerry what it's like to be a grownup, indicating that Billy died as a child. Billy died 10 years after the group graduated high school.

This was a hallucination so doesn't have to be totally logical.

The body of D.B. Cooper is found at the bottom of a hole, covered with leaves, into which he'd fallen. He broke his leg in the fall, making it impossible for him to have covered the hole. Not a goof: Dan Cooper would have died 23 years earlier. Leaves shed in all those years would likely have covered the hole.

When Dan's receptionist enters the room to tell him that he has a phone call from Jerry, the film is reversed. You can tell this because of her name tag and because the phone he picks up in the next shot is the same one that appears next the her on the wall.

After the guys regain safety from the rapids, and unflip the canoe, they appear to be in calm water. Seconds later they are back in rapids again, and fall down a waterfall, there would be no way for the water to be calm right in front of a waterfall.

When Del is shooting at Dennis and Elwood, sparks from the ricochets are seen on the fenders. This isn't possible because the fenders, like most of the ATV's panels, are made of plastic. Also, even if they weren't, bullets are made of lead, which won't cause sparks even against metal objects.

During the struggle for the pistol at the bottom of the mine, the magazine comes out of the pistol (possibly unintentional). You can see there are no bullets in the clip.

When Tom uses the flashlight to catch a fish, he catches the fish and then throws is at Jerry and Dan, but when they throw it back in the water the fish floats before the scene changes.

At the end, Tom takes the money. In reality, the money should be returned to the authorities because it is ransom money. Furthermore, the ransom money given to Cooper had documented serial numbers, meaning if it is spent anywhere then the authorities will know about it.

D.B. Cooper's partner could not have known him as DB before the flight. The hijacker called himself Dan Cooper, which was only changed to DB after his presumed death, from a reporter's bad handwriting.

When Dennis punches Elwood across the face, the punching sound used is clearly off-sync from the actual punch across the face.

In the pot growers' field, when the pot growers have the laser scope pointing at the plant in front of Tom, Dan, and Jerry, someone can be seen crawling on the ground behind the plant.

When Jerry is on Dan's cell phone with Denise, Dan and Tom walk into the scene. They step in too early, walk back out and walk in again.

Safety diver visible when Jerry is on the surfboard and catches a wave.

There are several palm trees along the shore of the river which would not exist in the Cascade Mountains of Oregon.

When Dan, Jerry, and Tom are driving 'the duke' to go on their expedition, Dan refers to 'the Duke' as having "the 318 V8, they're bulletproof." Wagoneers were never offered with a 318in3, especially not in 1977. The 318 was a Chrysler motor, and in 1977 Jeep was still under the ownership of AMC, and would come with either a 258in3I6, a 360in3V8 or a 401in3V8.

The villains Dennis and Elwood are from Oregon, yet have Southern (perhaps Georgian) accents and mannerisms.

When the 3 guys are in the tree house, they say the toys won't be taken out of the box until they find the treasure. When they have just gotten off the rapids, Dan has his little metal man, and then Jerry has the Indi-Compass.