It doesn't really sound like my cup of tea.

But it depends on the "themes" in the movie. People associate anything other than a G rating with things that are non-Christian, but it doesn't neccesarily have to be. There are lots of things that I may not really find appropriate for my child, not because it's "bad", but because of the themes involved. Is there an abusive spouse? Does it revolve around someone who was involved in a war? How did Dad wind up in his wheelchair? Drinking and driving accidents are horrible, not really something I want my child to have to deal with - but not 'sinful' to talk about. It's more a basis of what's in the movie, and the context it's in. I don't think that it should neccesarily be categorized as a non-Christian movie because of the rating.

The Passion of the Christ was either PG or PG-13 wasn't it? I haven't seen it, but it was a wholly Biblical depiction, but it still didn't rate that warm and fuzzy G rating.