So I've finished watching the original full film... although I skipped through some of the music videos and some parts that didn't actually have Roger Stone. The teaser clip in the article originally posted above comes at the end of the video. This section is definitely dubbed. Most of the shots show his mouth covered by his cell phone and when his mouth is shown it doesn't line up with what's being said and often the body language doesn't coincide.

My conclusion is that they have stuffed this bullshit clip in with an otherwise boring but "truthful" documentary trying to give it some credence. The clip is inconsistent with the rest of the documentary.

This doesn't mean that Roger Stone is not a shady dude, because its obvious he is. Only time will tell if he's shady for good or evil.