Slight correction: it wasn't UFC, it was general MMA. He fought (under steroids) with one two-bit organization, and his Lashley fight was going to be with a separate (potentially more-bit, but likely not, in the long run) organization.
It is the policy of the documentary crew to remain true observers and not interfere with its subjects.
If you wanna reach the Co-op, boy, you gotta get by me.
I didn't see the match, but from what I read it was the very first time Angle had attempted a moonsault. Check out Wrestlemania 2000 - he definitely tried one there. In fact, when he did break Bob's arm he'd been doing them regularly.