It's Nifty in the Navy 1965 ( 6.1)

The three young fishermen, Svend, Knud, and Valdemar, have bought a new cutter, but haven't paid it off yet. It is a real fishing film, but it is not JUST a fishing film. They have been granted deferments from the military several times, but suddenly the bell rings and they are called up as sailors in the Royal Danish Navy.