Although I do believe in the Apollo 11 mission there are a couple of points made by the disbelievers. The video looking from the cockpit of Apollo 11 out from a porthole is challenged as possibly being part of a mock-up / practice routine. The video camera used inside Apollo 11 produced high quality (for 1969) colour results but the camera used on the surface of the Moon was lesser quality (grainy) black and white. The implication is that lower quality video footage in black and white would be unlikely to reveal sufficient detail to prove the mission to be a hoax.

Whilst Armstrong and Aldrin were on the surface of the Moon I noticed that something, maybe a tool of some sort, fell out of a pocket of one of their space suits. The Moon's gravity is known to be one sixth of that on Earth. Yet this object fell as though it was in Earth gravity.

Furthermore, to get away from Earth you have to pass through the Kuiper Belt which is an area of radiation which totally surrounds the Earth. To the disbelievers in the Apollo Moon missions this is a strong point. According to them in 1969 it was impossible to survive passing through the Kuiper Belt, yet each Apollo mission passed through it on the way out and on the way back. NASA answer this by saying that
travelling through it quickly results in no problems.

I find it quite interesting to watch these 'Apollo Moon landings were hoaxes' videos, some being based on photo / video doubts, some based on Kuiper Belt doubts and other factors.