Luxury Liner is nothing but a trifle, a film so lightweight that the slightest breeze could topple it. That said, it's also an entertaining, simply nice film, a pleasant and breezy way to pass an hour and a half or so. As you might have gathered, you might as well forget about the plot. Oh, there's on there, scurrying around the shipboard and poking its head out of portholes now and then to remind the viewer that it's around. But the plot counts for nothing, something that can pretty much be said for character depth and originality in the dialogue department. But Liner isn't concerned with these things; it just wants to plop Jane Powell down in a basic situation and let her and her friends warble a few songs, do a little time step or two, and act a little silly now and then, all while romping about in glorious Technicolor. Powell is a perky delight, and is in top form vocally. Lauritz Melchior, perhaps not really perky, is in even better voice, and Marina Koshetz delivers an "I've Got You Under My Skin" to knock your socks off. Throw in a dependable George Brent, a lovely Frances Gifford and the Lantin rhythms of Xavier Cugat, and the result is empty but certainly entertaining.