Factual error: Even God could not arrange for everyone to win the lottery at the same time. Many people use their favourite numbers, and many syndicates play the same numbers every week. There is simply no way - God or no God - that every ticket could win, because there is no way that every lottery ticket could be the same. The tickets cannot have been magically altered - many people know the numbers they have played and would not think they have 'won'. Note that the protesters are complaining that they won the lottery but got back less than they paid for the tickets they purchased. That is only possible if everyone who bought a ticket won, as all lotteries pay out a percentage of the total amount of money taken in from ticket sales.
Visible crew/equipment: When Bruce goes back to the building toward the end of the movie looking for God and finds it deserted, as he runs through it, you can see the shadow of a figure (a crew member) on one of the columns on the left. It even slightly moves as he's approaching the ladder as if trying to duck away from behind. (01:13:55)
Suggested correction: This is definitely God's shadow. It's exactly where he appears a little later. So it's not a crew member, but a continuity error because Bruce must have seen him when entering the hall.
Suggested correction: Bruce could simply alter people's tickets and then alter their memories too. He wouldn't be affecting free will, since they still made the choice of what numbers to pick, Bruce just altered their memories to make them think they did something else. They're not protesting they got back less than they paid. They won $17 dollars each. I don't know how much a ticket costs in Buffalo, but I bet it's less than $17.
Suggested correction: Since Bruce was given God's powers and a lot of people were praying to win the lottery, he could have simply altered the numbers on their tickets.
Not only that, but one guy was complaining that he only won seventeen dollars.