Which movie gets the atmosphere of the boiler rooms correct

Everyone has seen James Cameron's Titanic, however, there was another movie I found tonight which was a docu / movie about the crew of the Titanic who worked in the boiler rooms. Good movie if nobody has seen it: https://www.youtube.com/watch?v=UoyWSRBvS5I

In James Cameron's version, the iceberg hits and it's an immediate choatic scene of people running, being burnt by water hitting the boilers, and people dashing for the water-tight doors.

In the movie I linked above, it seemed like a relatively calm environment, where crew working down there were clueless at first of what was going on (other than boiler room 6 which started to flood first). Crewmen stayed by the boilers to empty out coal, a few others went to investigate the forward boiler rooms to see how much damage was done.

So the question becomes; which version gets it more correct? I know from reports that the electricians stayed behind to try and re-direct power and keep the lights on for as long as possible.

If people haven't seen the movie I linked above, the iceberg hitting starts at the time https://youtu.be/UoyWSRBvS5I?t=2633