The documentary was made with the help of officers from Massachusetts Maritime Academy and California Maritime Academy, and seems accurate with regard to the basic physical facts. As seamen, we have to remember that programs like this one, produced for consumption by the general public, can't delve too deep lest they confuse their audience - an audience that may have seen the movie "Titanic" but by and large knows little about ships and the sea.
One thing I noticed is that the experts in the documentary made no mention of use of the bow thruster to help maneuver COSTA CONCORDIA toward the shore - in their animation, the ship is moved only by the wind. I'd be interested to know whether this is because it has been ascertained that that maneuvering with the bow thruster never took place - or was it just a simplification of the facts for a non-technical audience?
Here's an analysis by gCaptain's John Konrad, made immediately after the incident using initial AIS data, which would seem to support the idea that the bow thruster was used:
You and I - as professional mariners - are more interested in how the navigational decisions were made, how well bridge resources were utilized; and what was done, and what might have been done, after the event to preserve lives. I've also wondered what was going on in the Engineering spaces during this time. Much of this is still under investigation; Captain Schettino is still defending himself in court, and legal issues are still being settled. The Discovery video necessarily skirts most of this; still, it's interesting for what it is.
I'd be interested in your take - and if you know of other resources, especially with regard to the salvage operation, please let us know in the Comments section!