Visible crew/equipment: In the scene when Sir Robin meets the three headed man, you can just about see the boom mic above them. It is about an inch below the top of the screen.
Visible crew/equipment: When they are approaching Castle Aargh. In the next shot after Arthur says "Castle Aargh, our quest is at an end" we can see a motor boat on the lower left corner by the end of the shot. (01:24:15)