Like anywhere, we had to make people understand that we were there with good intentions, and that we were there with respect. We started making contacts with the people in the neighborhood three months before shooting began, so that everyone involved was comfortable.
The entertainment medium of film is particularly tuned to the present imaginations of people at large. A lot of fiction is intensely nostalgic.
Think of someone you know who's not saved but you may be afraid to share the Gospel with that person. I've found a way that's radically effective in training people to share the Gospel.