When the Lower East Side Film Festival starts Thursday, Mike Love of the Beach Boys will be one of six judges. Love, who co-wrote and sang lead vocals on hits like “California Girls,” “I Get Around,” and “Fun, Fun, Fun,” tells us he’s watched over a dozen films in preparation for the 10-day fest, but one film he says he hasn’t yet had a chance to see is Love & Mercy, the newly released biopic about his cousin and former bandmate Brian Wilson. Still, when we spoke to him Monday, Love addressed some of the band drama (or lack thereof?) depicted in the film. And before he raced off to create “excitations” in his audience (50 years later, the Beach Boys continue to spread good vibes on tour, with Love as MC), he also filled us in on a book that will tell his own story.