When Devon pours a glass of water for Trent it is less than half full. In the next scene outside it is seen to be more than half full even after splashing it about.
At 52:00 when Trent parks the truck at the river the front of the truck is at the water line facing downhill. After Devon and Trent moon her father and Nash we see at 54:39 Trent is driving the truck forward up the hill instead of backing up it.
It is an urban myth that sugar added to the gas tank will ruin an engine. Sucrose is insoluble in gasoline and the crystals are too large to pass through the filters so it would not reach the carburetors or cylinders.
At 1:34:49 when Devon throws the pistol into the water, the splash is much bigger than that could be possible by the gun.
At around 14:20, after Devon hangs her soiled socks on the tree limb, a crew member can be seen laying on the ground, presumably holding the visible monofilament wire connected to the cookie bag that falls from her wagon.
Devon refers to Baba Yaga as "he" several times and describes the character as having chicken legs, however, in Russian fairy tales/folklore Baba Yaga is an old woman and gets around by flying in a mortar and pestle, it is her house that runs about on chicken legs.
At 52.34 Devon looks directly into the camera.