Rhythm on the River 1940

Synopsis:

Popular songwriter Oliver Courtney has been getting by for years using one ghost writer for his music and another for his lyrics. When both writers meet at an inn, they fall in love and then try to sell their songs under their own name. The problem is every song publisher thinks they're copying Courtney's style.

Directed by: Victor Schertzinger
Written by: Dwight Taylor
Runtime: 92 minutes
Cast:
Bing Crosby
Bing Crosby
Bob Sommers 
Mary Martin
Mary Martin
Cherry Lane 
Basil Rathbone
Basil Rathbone
Oliver Courtney 
Oscar Levant
Oscar Levant
Billy Starbuck 
Oscar Shaw
Oscar Shaw
Charlie Goodrich 
Charley Grapewin
Charley Grapewin
Uncle Caleb