It wasn’t the first time documentary filmmaker Peter Rosen was assigned to film the Van Cliburn International Piano Competition, but when he arrived in Fort Worth in the summer of 2009 and saw that blind Japanese pianist Nobuyuki Tsujii was competing, he knew a special story was about to unfold. Rosen’s subsequent film, A Surprise in Texas, tells the story of last year’s Van Cliburn competition, creating out of the “Piano Olympics” an emotional journey that fuses vivid characters and beautiful music. We spoke with Rosen about his approach to the story, his use of music, and debuting the film at the Dallas International Film Festival.