It's important to note that finding information on actors who primarily work in a specific country, especially one outside of the US, can be difficult due to the language barrier and lack of extensive international databases.
If you are looking for specific information on Piter Marek's work, you could try the following:
* Search Polish film databases: Websites like FilmPolski.pl, which are specific to Polish film and television, might have more comprehensive information.
* Use Polish language search engines: Searching using Polish keywords might provide better results.
* Look for Polish film festivals or awards: These events often list actors and their projects, which could be a good starting point.
I hope this helps!