I don't know why people are saying this is a horrible movie. It's actually a very enjoyable movie, but was a bit short, and short on character development. The actors do decently for being mostly TV actors, and the scenery was great, as well as the music. And it doesn't suffer from pacing problems. I almost wish I could have seen it in the theatre. Overall a good movie. As far as historical accuracy, I don't know, but Hollywood has been known to extend the truth a bit. For the most part, however, it is fairly believable. Don't listen to people that say it's a waste of time, make your own decision, but I believe it's at least worth a rental if not more.
Review of Texas Rangers
