I am an avid
cavy slave, but I have to admit, the movie looks cute (my friend did some of the voices). I have all the same concerns you do.
Assuming the movie does generate interest in real piggies...
And, assuming people end up on this site (hopefully)...
Perhaps a huge red sticky post at the top of the forums that mentions "G-Force" and directs them to the proper care may be a good idea. Maybe even something on the front page of this site, so when people search "G-Force" this site (GuineaLynx should follow suit) has a chance of coming up.
Just my thoughts.