1.The name of the town was Orinda and not Santa Mira.
2. Yes, Bernadette did come from a very religious Catholic background. People describe the family as very devout.
3. In the movie Bernadette was sitting with her attorneys, in the real court room Bernadette was seen sitting with her mother and her sister. Her mother held her hand during most of the proceedings.
4. Yes, the court room really did hear Bernadette's confession on tape and her handwritten note was read in the courtroom. When the note was read, you could hear a pin drop.