Reverting the revert I do not know about any French documentary But on Belgian TV we had a National Geographic documentary about the Kursk Alas I did not record it It s summary is as follows The Kursk was taking part in an exercise with the aim of showing the power of Russia s superfast Skhval torpedoes to the Chinese The U S Navy not happy with the planned sale of Skhvals to China had sent two submarines to spy on Kursk and thus show U S discontent One of them Forgot which one had a collision with Kursk As a reaction Kursk opened it s Skhval equipped torpedo tubes Knowing they had no defense against a Skhval the commander of the other U S sub in order to out speed a Russion attack ordered the firing of it s own MK 48 torpedoes One of them sunk Kursk Captain of U S sub hurtled away and called White House as soon as possible Pres Clinton grabbed Red Phone to call pres Putin in order to prevent world war III Putin axcepted Clinton s explanation