Ahh, here is the film guy.
And a sample of the laser reflectors....not from the source I was thinking, but a good explanation.
I've run into a few moon landing conspiracy people, and I always ask them why NASA would go to the moon, bring back lots of rocks and have those rocks be so similar to the earth to toss our understanding of how moons form up in the air for decades. Why not just make that data fake too? Turns out the moon and the earth are isotopically so similar that they led to the theory of a primordial giant impact that resulted in the moon and the earth being made from the same stuff in a post-impact dual body formation. Why not make it fit the accepted models of the time? Why add a layer of controversy and change our collective perception of how moons can form? If you look at the scientific literature from the time, there was a massive outcry that the samples were contaminated with terrestrial dust, etc., and many, many follow up papers that confirm that the measurements were real. I suppose conspiracy theorists said that they couldn't fake the rocks, so they used earth rocks and hoped the collective scientific community wouldn't notice, but the technology to use a nuclear reactor and materials science to make the rocks look different clearly existed in the 1960's. Why make the only testable, physical evidence not coherent with the story?