Titanic Rear Expansion joint -

Quite some time ago, there was a TV do***entary on the structural integrity
of the Titanic's rear expansion joint.  This led to a dive to examine
whether the Titanic broke in two much earlier (much lower angle) than was
traditionally thought.  Unfortunately, I did not see the conclusion of the
do***entary and never knew the final conclusion.  Can anyone tell me what
the conclusion was?

Thanks and regards,

PJF