For an interesting discussion of the movie "Good Hair", see Anthea Butler's review. Here is an excerpt;
Apart from being a good film, Good Hair had a religious subtext that is important to look at within the context of the study of religion. You see, most of the “weave hair” ... comes from the practice of tonsure, or ritual haircutting, in Hinduism. The sacrifice of hair to the gods is the source of much of the human hair business in the United States. In fact, Rock’s documentary informs us that the hair cut for temple sacrifices is now the number one export out of India. The fact that tonsure, a religious act, has turned into a profiteering scheme is remarkable. But there also exist unscrupulous people who are stealing women’s hair, either while they sleep or in movie theaters where their braids or hair hang over the seats; while a woman is enjoying the latest from Bollywood, someone is cutting her hair and exporting it to be sold in Los Angeles.
Apart from being a good film, Good Hair had a religious subtext that is important to look at within the context of the study of religion. You see, most of the “weave hair” ... comes from the practice of tonsure, or ritual haircutting, in Hinduism. The sacrifice of hair to the gods is the source of much of the human hair business in the United States. In fact, Rock’s documentary informs us that the hair cut for temple sacrifices is now the number one export out of India. The fact that tonsure, a religious act, has turned into a profiteering scheme is remarkable. But there also exist unscrupulous people who are stealing women’s hair, either while they sleep or in movie theaters where their braids or hair hang over the seats; while a woman is enjoying the latest from Bollywood, someone is cutting her hair and exporting it to be sold in Los Angeles.