HBO showcases South Philly artist

"In a Dream," a documentary about artist Isaiah Zagar, who's covered 50,000 square feet of South Philadelphia with his tile-and-mirror mosaics, will premiere on HBO2 Aug. 19.

Filmed by Zagar's son, Jeremiah, the documentary, according to HBO, "uncovered the dark side of this gifted, tortured man, exposing the struggles of the Zagar family."

"I started filming a documentary about my father in 1999, back when I thought of him and our family as perfect," Jeremiah Zagar says in HBO's press release. "As the interviews progressed, I began to realize there was a much larger movie to be made than I originally envisioned...What started as an exploration of my father's life has exposed the secrets of our entire life."