Revealing mistake: After Kong kills the redneck, the second guy stands against a rocky wall when huge rocks fall on him. None of them hurt him, make him bleed, nor does he cry in pain, revealing they're fake props.
Revealing mistake: The soldiers fire their flamethrowers at Kong, but from his POV, one can see the tight rope covered in flames to simulate a flame.
Revealing mistake: The soldiers pour gallons of nerve gas to knock a humongous gorilla down, but none of the guys not wearing a mask are affected the slightest bit.
Revealing mistake: The bulldozer is rusty and covered in mud. When Kong grabs it, it's now a miniature perfectly painted. Also, the driver is an obvious dummy.
Revealing mistake: When Lady Kong grabs Mitch before Kong rescues her - and when she later arrives at the dance - Mitch is replaced with a stiff dummy.
Revealing mistake: Obvious dummy when Kong grabs the redneck with stiff, unrealistic arms, plus his white T-shirt under the plaid shirt disappears.
Revealing mistake: When Kong walks loose at the warehouse, a pickup truck zooms by and crashes. One can see it's empty.
Revealing mistake: When Amy falls in the river, she is replaced by a stunt with a blatant, bulky wig.
