A Johnny Cash documentary is in development.

Thom Zimny, the award-winning filmmaker behind numerous Bruce Springsteen documentaries and HBO Films' "Elvis Presley: The Searcher" documentary, is set to direct the untitled movie.

The documentary will have the full support of the Cash estate and will explore Cash’s music and biography through the Folsom Prison concert. 

Cash, who died in 2003, is a country music icon who also found success in other musical genres. The singer-songwriter behind classics "Ring of Fire" and "I Walk the Line" was the subject of a biopic in 2005, in which he was portrayed by Joaquin Phoenix. The actor received an Oscar nomination for his performance in the movie.