Hindenburg: The Untold Story known in Germany as Das Geheimnis der Hindenburg ("The Secret of the Hindenburg") and Die Hindenburg: die ungeklärte Katastrophe, is a two-hour docudrama about the disaster of the Hindenburg, and the investigation that followed. It aired on May 6, 2007, to commemorate the 70th anniversary of the disaster. It was commissioned by Channel 4, ZDF, and the Smithsonian Networks to be produced by Pioneer Productions and has also aired on Discovery Channel Canada. Its original working title was Hindenburg and is also known as Hindenburg: Titanic of the skies (which should not be confused with Titanic of the Sky, a different documentary by Vidicom). The British version is narrated by Malcolm Tierney who plays the role of Hugo Eckener, while John Shrapnel narrates an alternative version which features interviews with survivors.

It provides a reenactment of the Hindenburg disaster using a detailed computer-animated model. The animation was done by Red Vision, which also did the animation for two previous documentaries on the Hindenburg disaster: Hindenburg Disaster: Probable Cause and an episode of Seconds From Disaster. The film mainly focuses on the official investigation of the disaster. The live actions scenes were shot in Poland and later edited by Red Vision.