Looking back at the time I would say either side would have faked the moon landing if they could.
It would have saved them money and prevented risk to expensively trained test pilots.
We know that the Soviet programme had terrible accidents which were largely covered up and plans were made to deal with US failure which were also covered up.
And as the guy in the film says the US government is economic with the truth frequently (they wouldn't be doing their job correctly if the didn't bend the truth America's way).
The evidence seems to point rather conclusively towards men landing on the moon but that doesn't mean there isn't more to the story than what we know or that all that evidence is 100% of the truth.
It just means from the evidence we have it seems more probable that they did and seems highly improbable that the landings were 100% faked.
As there is no evidence for or against the existence of any supernatural beings any position on the subject is a belief or at the very least an unsubstantiated opinion.
Either way it would be rude to call a believer in God/Gods/Nogods nuts, threaten them with violence or to tell them to fuck off and die, even in jest.
A true lack of belief/unbelief in God is Apatheism.