When JD finishes speaking to the kids he walks towards his dad, and in the next shot they stand next to each other, which would be impossible as there were tables in the way.
When Becky and Luke walk out of the store after buying her candy and beer, Luke tosses his shirt onto his right shoulder. The screen shows Becky, then when back to Luke his shirt is on his left shoulder.
When Kennard is instructing Vince and Calvin how to steal the vehicle, after turning on the vehicle, he says the alternative is to "...hotbox the bitch." Hot boxing involves smoking inside of a closed area (such as a car) in order to increase the effectiveness of whatever is being smoked. The process he was actually referring to is hot wiring a car.