After losing a coveted role in an upcoming film to another actress, screen queen Mona Marshall (Lola Lane) protests by refusing to appear at her current movie's premiere. Her agent discovers struggling actress Virginia Stanton (Rosemary Lane) -- an exact match for Mona -- and sends her to the premiere instead, with young musician Ronnie Bowers (Dick Powell). After various mishaps, including a case of mistaken identity, Ronnie and Virginia struggle to find success in Hollywood.

At the Katnip Kollege, we see a roomful of cats taking a course in Swingology. Everyone swings except Johnny, who can't cut it and has to sit in the dunce chair. Miss Kitty Bright tells him to look her up when he learns how to swing. Finally, listening to the pendulum clock at night, Johnny gets the beat. He rushes out to where everyone is playing and sings "Easy As Rollin' Off a Log" to Kitty Bright. She joins in; he grabs a trumpet for an instrumental break, with the complete band. They both fall off a log; she covers him with kisses.

Mary Smith decides after a lifetime of being a shut-in to do something wild while her father is out campaigning for the presidency, so she takes off for the family's home in West Palm Beach and inadvertently becomes romantically entangled with earnest cowboy Stretch Willoughby. Neither the dalliance nor the cowboy fit with the upper class image projected by her esteemed father, forcing her to choose.

When the representative of the Paris International Dance Exposition arrives in New York to invite the Academy Ballet of America to compete for monetary prizes, the taxi driver mistakenly brings him to the Club Ballé, a nightclub on the brink of declaring bankruptcy. The owners, Terry Moore and Duke Dennis, jump at the chance to go, despite being aware of the mistake. They hire ballet teacher, Luis Leoni, and his only pupil, Kay Morrow, to join the group, hoping to teach their two dozen show girls ballet en route to Paris by ship. Also going along and rooming with Kay is Mona, Terry's ex-wife, who wants to keep an eye on her alimony checks. Naturally, Kay and Terry fall in love.

Winfield College students rebel against a stodgy professor who won't permit "swing" music be played in their varsity show. They appeal to a big Broadway alumnus and have him direct their show. What they don't know is that this "star's" last three shows were flops.

After being mistaken for Scotland Yard detectives, two vaudevillians (Michael Whalen, Chick Chandler) try to solve a murder in a Midwestern town.

Don Vincente is determined to make a success of himself and his band. He gets his break by performing at the Garden of the Moon, which is broadcast over the radio. The problem is that John Quinn is the club's ruthless, scheming manager who will do anything to keep Vincente under his thumb. John's assistant, Toni Blake, falls for Vincente, complicating the escalating war.

A detective and his bumbling sidekick join the crackdown on racketeering in '30s New York City.

An ex-con vows vengeance on the newspaper responsible for putting him behind bars, but has a change of heart when another racketeer threatens to bring the paper down..

Jackie Gleason and Jack Durant are teamed for the first and only time as Hank and Jed, a pair of dimwitted barbers who are forced into bankruptcy because all their customers have marched off to war. Figuring that if you can't beat 'em, join 'em, Hank and Jed try to join the Army themselves, only to be rejected for a variety of reasons (When asked to read the eye-chart, Hank says he can't-not because he can't see, but because he can't read).