Mona Maris

In the waning days of WWI, a U.S. "Mystery ship," sets sail for the coast of spain towing a submarine. Their mission is to find and sink a u-Boat that has been especially effective in attacking allied shipping. Posing as a harmless schooner, the mystery ship is in fact fitted with a formidable gun capable of sinking a u-Boat. Stopping in the canary islands to refuel, the crew interacts with locals involved with germans, and with germans themselves, including the sister of the u-Boat commander, who is lurking offshore waiting for the coming battle.

When a scientist uncovers the secret to creating synthetic diamonds, a criminal gang races to steal the formula, with the Falcon hot on their trail.

When a Nazi discovers the evil ways of the party he's aligned with, he tells his brother the truth and tries to convince him to ditch the swastika.

To make her lover jealous, a beautiful Parisian socialite passes off a bumbling plumber as her paramour.

A young woman runs away from reform school, joins a pickpocket academy, and falls for the handsome diplomat she's been blackmailed into stealing from.

With a lilting "Tira Lira La," a bevy of Budapest beauties show up for the birthday celebration of the town's most eligible bachelor, Count Palaffi (Nelson Eddy). Weary of their scheming attentions, the wealthy playboy slips away to his room… and dreams the fanciful escape of I Married an Angel. That angel is Jeanette MacDonald, starring with Eddy for the eighth time. The two stars are delightful as ever, harmonizing the Rodgers and Hart title tune, and more, in heavenly fashion. And the story has all the puffy-cloud imaginativeness you'd expect. This whimsical bon-bon of a film marked the end of the legendary MacDonald-Eddy pairings. They were to silver screen operetta what Astaire and Rogers were to dance. There's never been anyone else like them. There never will be again.