I have hosted American Youth Symphony film-music concerts for seven years now, but rarely has one been so much fun as Sunday’s live-to-picture performance of Michael Giacchino’s score for Star Trek: Into Darkness, conducted by (the, let’s face it, phenomenal) David Newman. The Oscar-winning composer came out at the beginning, for an interview about the challenges of scoring the Trek films (and confirming that he’ll score the next one, Beyond); and again at the end, to conduct the premier performance of his suite from this year’s delightful Pixar film Inside Out. The sellout crowd at UCLA’s Royce Hall loved it.