This is lifted from The Gracies & The Birth of Vale Tudo DVD, which was released last year. Everyone should pick it up, great stuff.
What does it say at the very end about Carlson? Starting at 17 mins and 5 seconds.
It mentions how Rolls trained with Carlson, how Carlson had an aggressive style, and helped develop many great fighters.
The original doesn't have that awful music dubbed in. You should check it out.
It's sad more stuff like this isn't made. This film isn't perfect but it's sad seeing it get sliced up and put on YouTube with no credit and no compensation.