It's possible this film title is incorrect or a misremembered title. It's also possible this film was a short, home-made production or a film that has been lost to time.
To find information on actual films about Rube Waddell, you could try searching for:
* "Rube Waddell film": This will give you results for any films mentioning Rube Waddell.
* "Rube Waddell biography": This might lead you to documentaries or biopics featuring him.
If you have any other information about the film, like the production company or the type of film, it might help narrow down the search.