The star-filled concert will be widely shown on TV and streamed online — but this should provide an opportunity for fans who don’t have a ticket to the Madison Square Garden event to enjoy a communal experience with immersive video and sound. National CineMedia will provide a feed of the 12-12-12 benefit over its Digital Broadcast Network to more than 200 Cinemark, Century and Tinseltown theaters. They’ll show it live beginning at 7:30 ET, and charge about the same price the venue would for a child’s movie ticket with all proceeds going to victims of Hurricane Sandy. The concert will feature Alicia Keys, Eric Clapton, Bruce Springsteen, Billy Joel, Kanye West, The Rolling Stones, The Who, and Paul McCartney. Other chains including Clearview and National Amusements also will show the concert in some theaters, but Cinemark appears to be committing the most venues. (Cinemark says it will post a list of participating theaters and ticket info at its website.) The chain’s CEO Tim Warner says it’s “a great cause.” It’s also just the kind of event theater owners have long said they need to help fill the seats — and boost concession sales — on typically slow nights.