There is no movie or known project called "Round Trip to Mars." It's possible you're thinking of a different title or have a slight error in the name.

To help me find what you're looking for, could you provide:

* More information about the project: Is it a movie, book, TV show, or something else?

* Any other details you remember: What is the plot about? Who are the main characters? What is the genre?

With more details, I might be able to figure out what you're thinking of!