Apparently, every penny you pull out of the ATM is a chance at the Lottery. Therefore, Arturo's $5 withdraw put him in the running 500 times.
When Henry the dog is jumping at Arturo and he tells him to "Get down you loathsome creature", Quinn replies, "At least he's not biting you," but his lips clearly say, "At least he's not humping you."
If the people of this planet are so fixated on making it to the afterlife, why don't they all just kill themselves and get it over with? It can't be they believe suicide is a sin. The exalted lottery is itself simply a ritual suicide.
If the Lottery is designed to control the population, then logically there would be a Lottery everywhere. So why does the guy standing near the Lottery machine ask if they're from out of state?
Quinn gets shot in the back on his way through the tunnel. But if you freeze frame when he pops out, you see there's no bullet wound in his back.
During the television announcement of the lottery winners, Wade's surname is misspelled "Wells".
Book: "The Lottery" by Shirley Jackson
The plot line of this episode is similar to the plot of Shirley Jackson's story "The Lottery". In the story, the citizens of a small village perform an annual lottery, in which the winner gets stoned to death.
From this point on, Wade keeps a journal of the group's adventures. Strangely enough, this journal does not make a physical appearance until the Season 2 episode "Greatfellas."