That's Right - You're Wrong (1939)

Starring Kay Kyser, Adolphe Menjou, May Robson, Lucille Ball, Dennis O'Keefe
Directed by David Butler
(actor & director credits courtesy IMDB.com)

A struggling movie studio tries to reverse their misfortunes by signing Kay Kyser and his popular band to a contract, but have problems creating a story for the comical bandleader.

The first feature film to showcase Kyser and his band oddly doesn't feature more of their better-known standards, and is probably more successful in staging film recreations of their radio show, than launching them in an engaging adventure.  Nevertheless it's still charming and Kyser's "screen test" with Lucille Ball, long before her television success, is pretty amusing.  Fans of the band will have fun, and others may enjoy spotting some real-life Tinseltown journalists playing themselves.

You'll Find Out (1940)

Starring Kay Kyser, Peter Lorre, Boris Karloff, Bela Lugosi, Helen Parrish
Directed by David Butler
(actor & director credits courtesy IMDB.com)

Kay Kyser and his band entertain at a birthday party for a young woman who's been targeted for death by a trio of fearsome villains.

I'm very fond of this picture, an entertaining combination of the fun big-band numbers of Kay Kyser and his orchestra as well as the only teaming of horror icons Karloff, Lugosi, and Lorre.  Although the horror angle gives this a darker tone than most of Kyser's other films, there's nothing to be taken too seriously, and everyone seems to be having a grand time, as did I.  Although many big bands were featured in films of this era, none seemed to bring as much humor into the act as Kyser's, led by his shucksy Southern gentleman persona.