Revealing mistake: As Bobby drives along the dirt roads at the start of the film, in one shot when the camera is filming inside the car, you can clearly see the gear is in park position yet the car is "driving." (00:01:55)
Revealing mistake: In one overhead shot where Jake is apparently giving anal to Grace, the straps of his flesh-coloured thong are visible. (01:22:35)
Revealing mistake: When Bobby pushes Jake's dead body down the cliff, it's blatantly obvious it is a dummy. You can easily tell by the way the limbs move and flex about. (01:48:55)
Revealing mistake: After Grace pushes Bobby off of the cliff, in some shot's the Sheriff's dead body breathes. (01:51:45)
Revealing mistake: After the radiator hose breaks for the last time, Bobby opens his mouth to laugh and it is obvious that the teeth that are supposed to be missing have just been blacked out because he touches them with his tongue. (02:00:15)
