When Chuck receives a copy of the Time magazine, the sale price "FIFTY CENTS" is visible on the top left corner, behind Josiah's note. When he subsequently shows the magazine to Greg, the top left corner is blank, with no sale price. Although it is conceivable that it's a different copy, it would have been the first one -sent by Josiah- that might reasonably have been a complimentary copy with no sale price, not the one that Chuck might have later procured commercially.
When Greg is being baptized by Lonnie the sun is very low on the horizon. In subsequent scenes the sun is higher. This would be acceptable if it were a sunrise but the context appears to be later in the day and, in any case, Pirate Bay is facing westward.
Lonnie lost his long walking staff when he got picked up by the side of the road.
At 1:21:24 as Greg turns his head leftward you can see that the fake sideburns have partly peeled off.