Escape Plan: Plot Spoiler

Escape Plane

In My Humble Opinion:  The Escape Plan features a high-tech prison (not nursing home) that is supposedly impossible to escape from.  The movie stars action heavyweights Sylvester Stallone and Arnold Schwarzenegger (harnessing their inner Clint Eastwood and Tim Robbins) and actually looks like a pretty interesting film.  I did come across something in a TV spot I caught the other night.  It’s not a major plot spoiler, but if you look carefully you can obviously tell that the prison they are incarcerated in is on some sort of ship out in the middle of the ocean.  I froze a frame (see below) and you can tell the structure belongs to that of a ship.  Thoughts?

Escape Plan Ship