Irene Taylor, director of the new documentary “I Am: Celine Dion,” talks about the decision to include a grueling scene of the pop star in crisis. By Annie Aguiar This article contains spoilers.

Filmmaker Irene Taylor learned a significant lesson from her mother, who is deaf, but loved to sing to her. "She didn't hit the notes, but she had a cadence and she had a rhythm that told me at a very ...