It's possible that:
* The title is incorrect: There might be a slight error in the title or year. Double-check the spelling and year.
* It's a lesser-known film: Films from 1920 aren't always well-documented, so it might be a film that hasn't been widely preserved or discussed.
* It's a fictional title: It's possible you're thinking of a fictional film or one that doesn't actually exist.
To help me find the right film, could you tell me:
* Is there any other information you know about the film? (e.g., genre, director, studio)
* Where did you hear about this film? (e.g., a book, website, movie database)
With more information, I might be able to find the film you're looking for and provide the cast list.