Originally Posted by folie a deux

Locke is shown climbing down into the sub and he is not wet. So we know he was able to go from the dock to the sub without getting wet. Why then not exit the same dry way? This has to be a significant plot point. And they are clearly showing that Locke was in the water, what is not so clear is why.

Think about it from a logistical point of view. This is a tv show. Terry O'Quinn is not actually doing anything with a real submarine. So the only way he gets soaking wet is if it is part of the storyline. It is part of his costume for that scene.

A shirt having different sweat stains from one scene to another or different rips after a fight, or gloves on then gloves off etc. Would be possible continuity errors.
A character that is totally dry in one scene and then completely soaked in the next scene is not a production error that a show like Lost would make. Ever.