This was from a time when the govt was pretty open about these things and when a commercial airline pilot could talk about what he saw without being fired. It has two films of unknowns and uses a lot of the real people inviolved.
One great line: "Credible people seeing incredible things."
Friedman, I think, was hoodwinked on Roswell. A good debunking book about that incident, with a "fool you" title: The Roswell Ufo Crash: What They Don't Want You to Know