Read the following passage and answer if the question is true or false.
Passage: The Iceman is an American biography crime thriller film based on the true story of longtime notorious hitman Richard Kuklinski. Released in 2012 at the Venice Film Festival, the film was directed by Ariel Vromen, and stars Michael Shannon as Kuklinski, Winona Ryder, Chris Evans, and Ray Liotta.

Question: is the movie iceman based on a true story?

Is the answer True or False? Respond with only "True" or "False" and no additional text.
True.