One of the lineups of this year’s Sundance Film Festival is a new documentary about Bruce Lee titled Be Water, which will be released under ESPN’s 30 for 30 banner on Sunday, June 7th at 9 p.m. ET on ESPN.

Award-winning Vietnamese American filmmaker Bao Nguyen directs this profile of martial arts legend Bruce Lee, who left Hollywood in 1971 dejected, but returned to his parents’ homeland of Hong Kong and made four films that changed the movies forever. The documentary combines rare archival interviews with Lee’s loved ones and his own writings (via SLT).

According to Aaken, Nguyen went to the U.S. and Hong Kong to interview people who have known Lee, including his wife and daughter, Linda and Shannon Lee, as well as his brother, Robert Lee (The Lady Killer). Also featured are Kareem Abdul-Jabbar (Game of Death), Dan Inosanto (The Chinese Stuntman) and former Golden Harvest producer, Andre Morgan (Stoner).

“There are so many intimate stories about him as a person that people don’t know compared to the legend, the mythical martial artist,” Nguyen said. “That’s the story my team and I wanted to show. It was difficult because back then, people didn’t have iPhones shooting everything. Finding the archival films and bringing those to new life with the relative interviews. … Building that story from the past was the goal.” (via PR).

Don’t miss Be Water on Sunday, June 7th at 9 p.m. ET on ESPN. Until then, check out the film’s Trailer, followed by a Sneak Peak below: