There are two theories at work here. A) Arnold doesn't quite understand what the purpose of a commentary track is, or B) He is actually narrating Total Recall for blind people. Either way, it's friggin' hilarious.
Reddit member ropeyhodges seems to have first scooped this one, and I've gotta say, this is something I really miss about DVDs. I'd say about 90 per cent of the movies I watch at home these days are streamed. Streaming movies are fantastically convenient, but we lose something that was one of the first big advantages DVDs had over VHS tapes: extras. I love extras. In a streaming-only world, the commentary you hear in the video above would never exist, and that, my friends, would be a tragedy.