I really can’t remember much but i believe its about 2 redneck or hillbillies who are trying to find a sister (this may not be accurate), one of them is really street smart and the other is an idiot, until the end when the idiot one gets hit by lightning or or bit by and snake and is knocked out, when he wakes up he’s really smart and can do math stuff very easily. The setting at the end i think is a swamp.
Yes they were the main characters. I think southern US. I keep thinking like Louisiana. I unfortunately can’t remember the box art. The type of comedy reminds me of adam sandler or David spade. I’m not sure though.