EVERYONE knows that an iceberg sank the supposedly unsinkable Titanic.

This is despite an, equally viable, alternative version of events put forward by my five-year-old that 'if Captain Smith had spent a bit less time in his bath and a bit more time at the steering wheel, it would never have crashed in the first place'.

The Unsinkable Titanic sides with the infant argument by claiming that, far from being the sole responsibility of the iceberg, the sinking was actually the result of a long chain of misjudgments, human errors and misfortunes which, put together, sealed the fate of the largest liner of its day, her passengers and crew.

Had just one link in that chain been missing, the programme reckons, this historic disaster may have been averted.

Made by the team behind Channel 4's re-examination of the Hindenburg disaster, the documentary draws on the latest research, as well as eyewitness accounts, to reconstruct the story from the point of view of those involved, and de-bunk the many myths that have built up surrounding the ship.

Could this finally lead to the ultimate explanation of what led to 1,500 people perishing in one of the greatest maritime disasters in history?