Mark Daniel Bailey, born in 1968, is an American writer and documentary filmmaker. He, along with his wife Rory Kennedy, co-owns Moxie Films, a production company that creates documentaries for various broadcast and cable networks, as well as for educational and philanthropic organizations.

Bailey's career began with writing, contributing to films like "American Hollow" (1999), which earned him award nominations. He has since written and produced numerous acclaimed documentaries, including "Pandemic: Facing AIDS" (2003), "Ghosts of Abu Ghraib" (2007), "Last Days in Vietnam" (2014), "Downfall: The Case Against Boeing" (2022), and "The Volcano: Rescue from Whakaari" (2022). His work has garnered significant recognition, including Academy Award and Emmy nominations, and a Writers Guild Award nomination.

Beyond filmmaking, Bailey has authored several books. These include "Of All the Gin Joints: Stumbling Through Hollywood History" (2014), "Hemingway & Bailey's Bartending Guide to Great American Writers" (2006), and the children's book "Tiny Pie" (2013). He also served as editor for "Nine Irish Lives: The Thinkers, Fighters & Artists Who Helped Build America" and "The Tibetans: A Struggle to Survive."

Mark Daniel Bailey has established a notable career in documentary filmmaking, co-owning Moxie Films with his wife, Rory Kennedy. His work as a writer and producer spans a diverse range of subjects. He penned "American Hollow" (1999), a film examining Appalachian family dynamics, which received Independent Spirit Award and Primetime Emmy nominations. He also wrote "Pandemic: Facing AIDS" (2003), earning an Emmy nomination for his writing. Bailey was involved in "Ghosts of Abu Ghraib" (2007), a film exploring a significant prisoner abuse scandal, which won a Primetime Emmy for Best Nonfiction Special. More recently, his documentaries "Last Days in Vietnam" (2014), "Downfall: The Case Against Boeing" (2022), and "The Volcano: Rescue from Whakaari" (2022) have achieved widespread recognition, with "Last Days in Vietnam" earning an Academy Award nomination and "Downfall" and "The Volcano" reaching high popularity on Netflix. Bailey also wrote the script for "Ethel" (2012), a documentary about Ethel Skakel Kennedy, which was nominated for multiple Emmys and earned him the Humanitas Prize.

In addition to his prolific film career, Mark Daniel Bailey is an accomplished author. He has written three books illustrated by Edward Hemingway. "Of All the Gin Joints: Stumbling Through Hollywood History" (2014) offers anecdotes about Hollywood figures accompanied by cocktail recipes. "Hemingway & Bailey's Bartending Guide to Great American Writers" (2006) blends literary history with cocktail recipes and stories about American literary figures. Bailey also co-authored the children's picture book "Tiny Pie" (2013) with Michael Oatman. His writing also extended to the documentary "American Hollow," for which he conducted interviews that appeared in the book. Furthermore, Bailey has served as an editor for several compilations, including "Nine Irish Lives: The Thinkers, Fighters & Artists Who Helped Build America," which features essays by contemporary Irish Americans about influential immigrants. He also edited "The Tibetans: A Struggle to Survive" (1998) and created the satirical calendar "Courts Illustrated: Surf, Sand, and Supreme Court Justices" (2017).

Mark Daniel Bailey was born in Elizabeth, New Jersey, and grew up in Summit. He pursued higher education at the University of Vermont and Georgetown University, where he earned a master's degree in English. He began his writing career in New York City in 1999. Bailey is married to filmmaker Rory Kennedy, daughter of Robert F. Kennedy. They married in 1999 and have three children: Georgia Elizabeth, Bridget Katherine, and Zachary Corkland. The family relocated from Brooklyn, New York, to Los Angeles, California, in 2013. Beyond his work in film and literature, Bailey has also ventured into product creation, debuting a line of plush toys called "Tiny Headed Kingdom" in 2016, which has since expanded to include various merchandise.

“Given that the film would go on to become the third-highest-grossing film in U.S. history, it would be hard to argue that Marvel’s decision to replace me was unwise.”