As Donna and Taryn prepare to hunt for the old Japanese guy they put camouflage paint on their faces. When they start the hunt the paint disappears, never to be seen again.
When Teri Weigel's character Anjelica got shot in her back, her black leather jacket was unbuttoned. But immediately during the next shot in her left breast, her jacket was buttoned.
When the computer guy from the CCC takes the floppy disk he inserts it into the drive incorrectly.
After the airplane flown by Donna and Taryn is hit by lightning, the clouds on Taryn's side move backwards relative to the direction of flight. Meanwhile, the clouds on Donna's side move in the correct direction, from front to back.
Martinez takes one gold bar lifting it with both hands like he can just barely lift it. A few minutes later he stacks a few of them in his backpack with one hand like they weighed almost nothing.
Minor plot point regarding the color of the American soldier's eyes leads to the Japanese warrior having a color photograph of this trooper, but he arrived to the island in World War II and did not have contact with anyone after his platoon committed seppuku (ritual suicide). Photographs would all have been in black & white back then.
When Bruce presses the red rectangular kill switch on the Kawasaki Ninja, a starter sound is heard. Then he presses the black round starter button below it but the engine appears to be already running.