Anyway I think the people here who say it didn't happen can prove it didn't about as much as those of us who say it did.
It is impossible to prove that it didn't happen. The "Didn't-Happeners" could go through every known archive on Earth, but the possibility would remain that there was an undiscovered archive, or that the footage was destroyed.
If it did happen, it would be fairly easy to prove. The "Did-Happeners" need only find one piece of film, or one video.
It's like a cryptid, or a ghost, or any other paranormal phenomenon. You can't prove that it doesn't exist, because demonstrating that something never existed anywhere requires the investigation of everything everywhen. You can't do it. But to prove something does exist requires only one verifiable, significant observation. That's why we believe in top quarks, black holes, and quantum tunneling, but not the missed grappling hook throw.