Keep Punching (aka: Jittering Jitterbugs)

-- Synopsis:
    A low-budget production that actually turned out pretty good. Golden Gloves champion Henry Jackson (Henry Armstrong) is known in the ring as Little Dynamite. Despite the opposition raised by his father (Walter Robison) and his sweetheart Fanny Singleton (Francine Everett), Jackson agrees to turn professional when he is approached by fight manager Ed Watson (Lionel Monagos.) Jackson's so-called friend Harrison introduces Jackson to a hot mama Jerry Jordan (Mae Johnson,) who is instructed to get him drunk

and do whatever she can to help him lose the fight including slipping a sleeping pill in his drink before the fight.

* Features:
   This film is not a musical but it does have two musical numbers. There is a nightclub scene with the Whitey's Lindy Hoppers doing the Lindy Hop and the Big Apple dance. The same scene was used in a couple other films as well.