Was there a movie or documentary made based on Tibor Sekelj's life?
No
Yes
A biopic is in the making
Multiple documentaries were produced
Answer
Although Tibor Sekelj had an amazing life, there was never a movie or documentary made based on it. This is likely due to the fact that Sekelj was not a famous person, and his life was not well-known. However, there are a number of books and articles that have been written about Sekelj's life, and his work has been translated into several languages.
Trekking Through Tibor Sekelj's Trail: A Quiz on the Life and Adventures of the Hungarian Author and Explorer