Oh yes I have!
Please, let's knock this discussion down a notch or two from your standards. I would like to approach this from the position that UFOs are indeed unidentified, which is my personal belief after nearly 30 years of interest; as opposed to alleged IFOs flown by aliens.
For anyone who thinks this entire subject is based in nonsense, then I strongly suggest watching the first video, and then reading Ruppelts book [already linked at the end of my second post].
All or most [some details may be known only to Al Chop] of the information in the film can be verfied through official Air Force documents or other mainstream sources. Most of this was covered in the USAF's Project Bluebook, which was run by Ruppelt.