Arcade Fire pick up where “Sprawl II (Mountains Beyond Mountains)” left off with its disco ball now worshiped by the Easter Island-headed masks of 2011’s Vincent Morisset-directed video. “We’re so connected, but are we even friends?,” sings Win Butler on “Reflektor.” “We fell in love when I was 19 and now we’re staring at a screen.” That’s some ’70s David Bowie-worthy zeitgeist-taunting right there, for which their 2005 collaborator turns up on guest vocals. They broach the question, but bow out in time: “See you on the other side. We all got things to hide.” The great Anton Corbijn directed the video above.