Stanley Kubrick used the technology and techniques he used to create in 2001: A Space Odyssey, made from 1964 to 1968, to create the video of the 1969 moon landing, which never actually happened. 2001: A Space Odyssey was given a budget of $10.5 million, the highest budget of any film at that time, for this purpose.
There is no outer space and there are no aliens. Quantum physics actually proves that there is no outer space and everything outside of you is a hologram. There’s a book named The Holographic Universe by Michael Talbot that goes deeper into this theory