New Movies: ‘Elysium,’ ‘Planes,’ ‘We’re the Millers,’ ‘Percy Jackson: Sea of Monsters’New Movies: ‘Elysium,’ ‘Planes,’ ‘We’re the Millers,’ ‘Percy Jackson: Sea of Monsters’This weekend a foursome of features will contend for your moviegoing dollar, as the summer movie season starts to wind down.Chris ChaberskiChris Chaberski