Updated: Jul 1
Here is another Practical Effects speculation demonstration video done with Coliseum Pictures utilizing the dry for wet technique.
Rieth Creations built, detailed, weathered and rigged the 1/32nd scale fiberglass submarine to hang from thin metal wires. The room was filled with fog. The footage was captured with a computer motion-controlled camera. CGI was used at the end for a water distortion effect from the turning propellers controlled by stepper motors.
It is amazing that a 10 foot long static model can convey emotion with movie magic using lighting, camera motion, sound effects and music.
I edited the logo at the end to the National World War II Museum from the original spec logo.