Documentary That I Watched!

A documentary that I watched on Netflix. It is a western as I am a history buff and it was interesting.

I was a documentary about Wyatt Earp and The Cowboys, after the Civil War. learned a few things about that time and it was interesting.

I found this on YouTube after I watched this. The first video is a trailer of the documentary. Did they get it right in the documentary or was it not right? Please start a discussion in the comments if you are a history buff. What is your opinion on this?