Before watching the movie:
I only know this movie exists because it famously has a scene where one of the men, probably Gene Kelly, dances with Jerry the cartoon mouse, which must be a fantasy number.
Apparently, this is a musical about falling in love on shore leave. Sinatra and Kelly are friends and shipmates and at least one of them falls in love with a local girl in port. I would be pleasantly surprised if this didn’t make up the bulk of its plot on a love triangle, but I’m just looking forward to some songs about sailors having good clean fun ashore.