If you do two versions of a film, they should be identical. With the same frames and settings.
I tend to get comfortable with the dialogue and find out who the person is in the script and try to hit that. People are sort of independent of their occupations and their pastimes. You don't play a politician or a fireman or a cowboy - you just play a person.
I wouldn't miss this opportunity for anything. For the chance to work on these conservation issues, to serve my country, to work for this president, I'd do it all over again, every single minute.