Jeremiah Zagar was born in South Philadelphia in 1981, the son of artists, and has been making films since he was a teenager. He completed his first documentary, a short called Delhi House, at age 19. It screened at a number of festivals, including the Slamdance Film Festival. the Philadelphia Festival of World Cinema, and the Fort Lauderdale International Film Festival. "Delhi House" also screened at the Egyptian Theatre in LA as part of the American Cinematheque series and has aired on dozens of PBS affiliates across the country.
A year later, Zagar's The Unbelievable Truth was a semi-finalist in the student Academy Awards, screened at Tribeca and was named 'Best Narrative Short' in the Philadelphia Film Festival. Zagar's Baby Eat Baby premiered at the 2004 Florida Film Festival and was named "Best Experimental Short" at the Atlanta Film Festival. His short film Coney Island, 1945 was a precursor to In A Dream. It tells the story of his father's artistic awakening as a young boy in Coney Island. The short premiered at the Tribeca Film Festival and went on to screen at SXSW, the Hamptons, and the Times bfi London Film Festival. It also aired on WNET Channel 13 in New York as part of the Reel NY Film Festival. Zagar's first feature-length screenplay, Paper Giant, was given the Irene I. Parisi award in the Set in Philadelphia Screenwriting Competition.
His first feature-length film, the documentary In a Dream, premiered at the SXSW Film Festival in Austin, Texas, where it received the Emerging Visions Audience Award. At the 2008 Philadelphia Film Festival, it received the award for Best First Film.
In a Dream tells the chaotic story of Julia Zagar and her husband Isaiah Zagar, a renowned mosaic artist, who for the past 30 years has covered more than 40,000 square feet of Philadelphia top to bottom with tile, mirror, paint, and concrete. It follows the Zagars as their marriage implodes and a harrowing new chapter in their life unfolds. An exploration of the fallout that ensues when the line between art and life is blurred beyond distinction.
Jeremiah Zagar now lives in Brooklyn, where he periodically teaches filmmaking to high school students and is focusing on new projects with his production company, Herzliya Films.