The Los Angeles Philharmonic, in partnership with the Academy of Motion Picture Arts & Sciences, is doing a weekend of live-to-picture concerts of classic films. I’ve been asked to do the pre-concert talks, but instead of a lecture, I’m interviewing the conductors and current/former Academy music-branch governors. We began Thursday night with Leonard Rosenman’s score for the 1955 James Dean classic Rebel Without a Cause. Joining me in Disney Concert Hall were Scott Dunn, who not only restored the score for live performance (this was its debut) but also knew the composer quite well; and Charles Fox, the Grammy- and Emmy-winning composer and songwriter who is also a former Academy governor. We all talked about Rosenman’s life and career, and more specifically about his unique approach to Rebel — which combined his groundbreaking modernist style with a lively urban-jazz touch. Philharmonic performances of On the Waterfront and Casablanca will follow.