The bolded tends to be the moral of most Stephen King stories, especially "The Mist". ;-)asterisk8 said:
This was a cool concept bogged down in bad characterization - specifically a very generic and somewhat unlikeable hero supported by a grocery store full of stereotypes - and full of very obvious and derivative plot turns. The ending really left me asking, "What is the take-away?" What are we supposed to walk away from this film thinking about? I don't mind ambiguity. I like being left with things to think about, I like unanswered questions, but The Mist seemed to not know what it was trying to bestow on its audience. Do not tamper with nature? Do not blindly follow authority? We're all damned? I don't know.
I've not seen the movie, not sure why, its one of my favorite stories of his.