It is possible that:
* The name is misspelled: Double-check the spelling of the name.
* The person is not a public figure: If Riki Marcelli is not a well-known actor, director, or producer, their information might not be easily accessible online.
* The person works behind the scenes: They could be working in a non-acting or non-public-facing role in the film industry.
To help find information, you could try:
* Searching for alternative spellings: Try variations of the name.
* Searching for related names: Look for people with similar names who might be related.
* Searching for projects by specific production companies: If you know the production company involved, search their website or IMDb for any personnel.
Please provide more context or information if you have it, and I'll try my best to help!