RMS Titanic sank on 15 April 1912 claiming the lives of more than 1500 people. Just over 700 survived the disaster.

The events surrounding the sinking of the luxury ocean liner, the identities of those on board, plus the stories of heroism and heartbreak on the night have generated global fascination in the vessel, which continues to this day. And that interest in Titanic has generated huge commercial appeal and revenue - for writers, film and documentary makers, museums and auction houses.

We examine how some mysteries surrounding the doomed ship continue to spawn so many, varied business ventures around the world - and the ethical questions that arise from the continued fascination in the Titanic story.

(Picture: Woman looking down at some binoculars inside a glass case at a Titanic exhibition in Paris, France. Credit: Getty Images)

Presented and produced by Russell Padmore