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These movies tackle some very tough subject matter. Whether it's Blackfish, Dear Zachary, or The Bridge, these documentaries will leave you shaken. WatchMojo counts down the top documentaries that are hard to watch.

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Special thanks to our user alexholmes619@gmail. for suggesting this idea!

List rank and entries:
#10. “13th” (2016)
#9. “Zoo” (2007)
#8. “Tarnation” (2003)
#7. “Titicut Follies” (1967)
#6. “Dear Zachary A Letter to a Son About His Father” (2008)
#5. “Blackfish” (2013)
#4. “Capturing the Friedmans” (2003)
#3, #2, #1???

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