Can you recommend some scary documentaries based on true stories?

The documentary 'The Jinx' is also a must - watch. It tells the true story of Robert Durst. The filmmakers uncovered some really shocking evidence during the making of this doc. Durst has a very dark and disturbing past which makes this a truly scary documentary.

One well - known betrayal documentary based on a true story is 'The Jinx'. It delves into the life of Robert Durst, a man suspected of multiple murders. The documentary reveals how his actions over time seem to be a betrayal of those around him, including his family and friends. It's a gripping exploration of a complex character.

Another great one is 'The Imposter'. This is a truly disturbing story. A French man impersonates a missing Texas boy. The documentary shows the real - life interviews and the strange events that unfold as the imposter tries to fit into the family, blurring the lines between truth and lies.

One such documentary is 'Cropsey'. It's based on the real - life urban legend of Cropsey on Staten Island. The documentary delves into the mystery and the real - life events that might have inspired the terrifying tales.

'Dear Zachary' is another popular one. It's a heart - breaking and scary true story about a man who was wrongly accused of murdering his pregnant girlfriend. The way the story unfolds and the real - life implications are truly disturbing.

The fact that they're true. Knowing that these events actually happened makes it all the more terrifying. For example, in a horror movie, we can tell ourselves it's just fiction, but with a true - story documentary, it hits closer to home.

Sure. 'The Cove' is an excellent one. It exposes the cruel dolphin hunting in Taiji, Japan. It's a shocking revelation of an ongoing practice.

'Blackfish' is also highly recommended. It focuses on the treatment of orcas in captivity, especially at SeaWorld. It shows how these intelligent and large - scale marine animals are affected by being confined in small tanks and the implications of their training for shows.

Not always. Some documentaries might take creative liberties or present one-sided views.

One great one is 'Icarus'. It delves into the world of doping in sports. The filmmaker originally set out to make a film about his own attempt at doping to compete in a long - distance cycling event. But as he dug deeper, he uncovered a major international doping scandal. Another is 'The Act of Killing', which is about the Indonesian mass killings in the 1960s. It's a very powerful and disturbing documentary as it gets the actual perpetrators to re - enact their crimes in different cinematic styles.