If your going to use both bodies than use both lenses. Otherwise It all depends on the shot your after. If you want a group shot Id say the 35 but if your going for candids than the 70-200 will help keep you out of the way.
I had no idea about all that. Thanks for the lessen. Planning on taking a trip down at some point soon. Did you or have you ever gone to one of the dolphin shows? Every time we go its always sold out unless its a show thats 4 hours from when I buy tickets.
I cant answer your film questions but I would suggest picking up a copy of understanding exposure by Brian Peterson. Check out this video to understand more about the exposure triangle.