Jeremy Piven is teaming with documaker Bert Marcus on a feature documentary about the world of reality TV and a pilot titled “What I Really Want to Do Is…”

The doc, hosted and produced by Piven, will explore reality TV’s impact on media, entertainment and modern society along with its mass appeal. “Because of starring in ‘Entourage’ over a decade, Jeremy has a deep understand of the dynamics of this genre,” Marcus said.

“What I Really Want to Do Is…,” which the pair plan to develop into a docu-miniseries, actors, musicians and athletes reveal what they would do if they had the chance to explore a passion outside their current professions.

Piven’s own journey will kick off the series, exploring his talent as a drummer.

Piven will star in and produce the pilot, set to be completed in December. Marcus will produce and direct. Marcus has wrapped production on “Boxing,” a feature documentary exploring the worldwide appeal and impact of the sport through the eyes and life of Mario Lopez with interviews with Manny Pacquiao, Mike Tyson, Sugar Ray Leonard, Micky Ward, Donald Trump, Arnold Schwarzenegger, Mark Wahlberg, Christian Bale, Denzel Washington and Ron Howard. “Boxing” will be for sale at the American Film Market.

Bert Marcus Prods. launched with “Teenage Paparazzo,” produced with Adrian Grenier, which premiered at the Sundance Film Festival in 2010. The film was picked up by HBO and aired in September 2010.

Bert Marcus Prods. is also finalizing its second film, “How to Make Money Selling Drugs.”