Based on Ham Fisher's famous comic strip boxing hero
A flashback opening reveals middleweight Stuart Erwin (as Joe Palooka) was left with mother Marjorie Rambeau (as Mayme) by womanizing champion father Robert Armstrong (as Pete)
Twenty years later, Ms. Rambeau holds her years well. But, son Erwin seems to have aged an extra decade. Still, Erwin enters the ring, after being admired fighting by manager Jimmy Durante (as Knobby Walsh). Mr. Durante pushes Erwin into action, promoting him as the new "Palooka" (after his famous father).
Erwin wins the championship crown from William Cagney (as Al McSwatt), who is disadvantaged by arriving drunk for the title bout. Erwin also wins Mr. Cagney's hotsy-totsy girlfriend Lupe Velez (as Nina Madero). All of this puts yokel Erwin on the fast lane, upsetting mama and home-town sweetheart Mary Carlisle (as Anne). Note that "Reliance Pictures" makes Bill Cagney up to look exactly like his big brother, James "Jimmy" Cagney. Ms. Velez wears some eye-popping low-cut gowns. And, Durante introduces his top ten hit "Inka Dinka Doo".
**** Palooka (1/26/34) Benjamin Stoloff ~ Jimmy Durante, Stuart Erwin, Lupe Velez, William Cagney