A Dyslexia Film and a Director's Family PARK CITY, Utah - It's an emotional strain for a filmmaker to bring a project to Sundance. The thrill of getting in is quickly followed by fear: What happens if nobody likes it? Now imagine what added emotions might be surging through a director whose film showcase's his son's disability. And, oh yeah, the director's father founded the festival. "To put it lightly, there are complicated feelings," said James Redford, whose documentary "The D Word: Understanding Dyslexia" has its premiere at Sundance today. The film centers on his son, Dylan, and his struggle with the disorder, and includes interviews with a number of high-profile people who have overcome it, including Charles Schwab and Richard Branson. "I wanted to make the film that I wish I had been able to see when my son was just being diagnosed," said Mr. Redford, who said he had a distribution deal with HBO that involves a school-screening series. Mr. Redford has been attending Sundance since the mid-1980s, when the festival started taking off under the care of his father, Robert. The younger Mr. Redford also produced "The Kindness of Strangers," the 1999 documentary about organ donation that played the festival. Mr. Redford, who goes by Jamie, had two liver transplants in 1993 stemming from a rare autoimmune disease. Did nepotism play a role in Sundance's selection of his new film? Festival programmers and Robert Redford say absolutely not, and Jamie Redford said he trusted that that was the case. "I have felt the sting of rejection at Sundance - not all of my work has been accepted," he said. I'm really happy they liked this one. For his part, Robert Redford said, "Speaking as a dad and a grandfather here, I'm really proud. This is a very personal film that is important because it's about something that people just don't know enough about.