Joss Whedon and Ronald D Moore are among the TV show creators who feature in a new documentary trailer.
Showrunners will be the first feature-length film that delves into the world of TV executive producers, and the processes behind making a successful show.
Doctor Who and Sherlock producer Steven Moffat makes a cameo appearance in the promo.
JJ Abrams, Steven S DeKnight (Spartacus), Matthew Carnahan (House of Lies), Jane Espenson (Once Upon a Time), Hart Hanson (Bones) and Kurt Sutter (Sons of Anarchy) have also contributed to the film.
Directed by Des Doyle, the film was created with the backdrop of WonderCon.
It will also feature Steven Molaro (The Big Bang Theory), Steve Callaghan (Family Guy), John Rogers (Leverage) and Andrew Kreisberg (Arrow). Rockne S O’Bannon (Revolution), Marc Guggenheim (Arrow), and Chris Carter (The X-Files) are also involved in the film.