Hell yes. I have seen Red Dawn, Shooter, Boondock Saints, Desperado, The Professional, Wanted, and Shoot 'Em Up about a hunnerd times each and now I'm Billy Frikkin' Badass. Currently I am working on my "Bullet Time" anti-ballistic drills. You know, from that how-to series by the guy who also did that documentary on Practical Time Travel (And The Scavenger Hunts It Inspires).

The original question was "Does anyone here think they can learn to shoot from a DVD?".
Nothing was said about tactics, combat shooting or any other criteria.

Yeah, I think anyone can learn the mechanics of how to shoot from a DVD or a book.

Put front sight on target, center it in the rear sight, pull trigger. Hey, now you're shooting. Ladies and gentlemen, this is not rocket science.

However, to be "Billy Frikkin' Badass", you might require some additional instruction.