Oh Johnny, How You Can Love is a 1940 American film directed by Charles Lamont and starring Tom Brown and Peggy Moran.
[1] Kelly Archer, an heiress trying to escape her controlling father and elope with an archeologist, runs into the truck of traveling salesman Johnny Sandham.
That night, stopping to have the truck's brakes fixed, Johnny dupes the Weasel into helping him win over Kelly: Johnny pretends to be gangster "Jersey Joe", and says they should kidnap Kelly for ransom.
Kelly overhears their plan, and helps innkeeper Thistlebottom subdue both men.
Kelly's father arrives to take his daughter home, but she rides off with Johnny.