Famous Jewish violinist Itzhak Perlman gets his own documentary

( JTA) — Itzhak Perlman, arguably the most famous violinist in the world, has heard plenty of questions in his 50-year career. But when asked if his religious heritage has affected his playing, he sounds stumped. “I’m a violinist. I’m Jewish, so that makes me a Jewish musician,” he tells JTA on the phone recently from Singer Island, Florida, where he is to perform at a benefit. “I’m a musician who just happens to be Jewish. When I play klezmer … ” He doesn’t get to finish the thought because he is interrupted by Toby, his wife of more than 50 years. “I think that’s not true,” she says in the background. “I think you’re the embodiment of a Yiddle with a fiddle.” Perlman, 72, is the subject of a new documentary, “Itzhak,” which opens in New York on Friday and Los Angeles on March 16, with an