Riverboat Rhythm (1946)

Set upon the mighty Mississippi, this comedy chronicles the travails of a showboat captain trying to keep his operation financially afloat. He barely has enough money to do so and with no license, operates illegally. He finds more trouble when he moors at a posh hotel, pretends that he is a fine Southern colonel and gets himself embroiled in a huge feud. Things get worse when the town sheriff enters the mix.