Considered by the New York Times to be “a filmmaker of artistic and political consequence,” Greg draws on his years of experience working around the globe to make thought-provoking and character-driven documentaries about the complex world we live in.
In 2009, HBO aired his award-winning documentary feature Sergio, which was described by the Los Angeles Times as “a documentary of exceptional power.” The film profiles U.N. envoy Sergio Vieira de Mello Sergio and was met with critical acclaim at the Sundance Film Festival and shortlisted for the 2010 Academy Awards.
Koran By Heart, also directed for HBO, depicts one of the world’s preeminent recitation competitions of the Holy Koran. The feature was one of the most popular documentaries at the Tribeca Film Festival and The New York Times called it “an inspirational film of the unique experiences of Muslim children throughout the world.” Greg has also previously directed several films for the PBS series Frontline, including the renowned Ghosts of Rwanda, which examined the American government’s inaction during the 1994 genocide.
In 2013, Greg received the Emmy Award for Outstanding Documentary or Non-Fiction Special for his feature documentary Manhunt. The film, which gives an insider account of the remarkable true story of the CIA’s two-decade search for notorious terrorist Osama bin Laden, premiered at the Sundance Film Festival and aired on HBO.
In We Are The Giant, Greg takes audiences inside the lives of several extraordinary Arab Spring activists as they grapple with the universal dilemmas at the heart of justice and freedom: whether to take up arms and fight, or to advocate change through peace and non-violent protests. The film premiered at the 2014 Sundance Film Festival and received a limited theatrical release later that year. Working in concert with Amnesty International, the film not only garnered critical success, but also helped achieve the release of Zainab al-Khawaja, a Bahraini activist who had been imprisoned for her non-violent protests.
In 2016, Greg directed Homegrown: The Counter-Terrorism Dilemma for HBO Documentary Films. The film tackles the real and perceived threat of homegrown Islamic terrorism through the perspectives of the friends and family of the accused and those tasked to fight it.
Greg also returned to Sundance in 2017 with Legion of Brothers. In the immediate aftermath of 9/11, small teams of Green Berets were deployed on a series of secret missions to overthrow the Taliban. With unprecedented access to U.S. Special Forces, the film is equal parts war origin story and cautionary tale, as well as a testament to the long-term personal impact on those who fought.
That same year, his documentary The Final Year, chronicling the Barack Obama administration’s foreign policy team and the events of the Obama’s last year in office, made its world premiere at the 2017 Toronto International Film Festival and became an HBO Original Documentary.
Greg was based in London for much of his adult life but currently resides in Los Angeles where he continues to work on feature documentaries, as well as his first scripted film, a narrative adaptation of his own 2009 documentary Sergio for Netflix, which premiered at the 2020 Sundance Film Festival.