In the closing shot, Churchill's "V for Victory" can be seen behind Popeye's fleet.
First appearance of the "Famous Studios" branding in the opening segment.
First appearance of the opening segment with Popeye's head poking out of a porthole and tooting his pipe. The animation in this segment was the basis for the "spinning star" opening credits, lasting from Her Honor the Mare until the final cartoon in 1957, Spooky Swab .
Conga line music was very popular at the time of this short. It appeared in the soundtracks of cartoons by several studios during this era.
The patriotic theme of this short ("Keep 'em floating!") would have been appreciated by wartime cinema audiences, as the U.S. was building ships and planes in earnest after entering WW2.