I don't know about a movie, but there have been several books written about media bias by people in the media. One example is Bernard Goldberg's book "Bias." (h

I don't know about a movie, but there have been several books written about media bias by people in the media. One example is Bernard Goldberg's book "Bias." (https://www.amazon.com/Bias-Insider-Exposes-Media-Distort/dp/0895261901 https://www.amazon.com/Bias-Insider-Exposes-Media-Distort/dp...)