There is indeed a 1965 film called "Mister Moses" starring Robert Mitchum. However, it's not readily available on DVD.
While it's possible to find it on rare VHS tapes, it's not been officially released on DVD.
If you're interested in watching it, you might consider:
* Searching online retailers for used VHS copies: This is a long shot but might turn up something.
* Checking online streaming services: While it's unlikely to be available on mainstream platforms, some niche streaming services might have it.
* Looking into film archives or libraries: They may have copies for viewing.
It's important to note that the lack of a DVD release could be due to copyright issues or lack of commercial interest.