‘After Earth” is Will Smith’s version of Take Your Son to Work Day. Actually, he lets the kid take over the whole office. Some Hollywood kids get Porsches. Jaden Smith gets an apocalyptic summer blockbuster to horse around in. He was 13 when the film was shot. Somewhere off-camera, a rabbi must have been saying, “Today you are a star, my son.”
Sorry, not quite. “After Earth” takes place millennia in the future, when mankind has long since fled our ruined home planet and resettled on a distant orb called Nova Prime. Except for the carnivorous alien squiddly-diddlies called Ursas — they’re blind but can smell your fear — the place is paradise.