MOVIES: Calling all ‘Super Troupers’

  ABBA maniacs who just can't help singing along while watching "Mamma Mia!" will get the chance to do exactly that at local multiplexes, starting Aug. 29, when a singalong version hits theaters for a limited time. The singalong edition will, a news release promises, "feature the lyrics to every musical number on the screen, and you are invited to sing and dance along."  At a much more appealing price than the stage show at Mandalay Bay, where the same thing happens night after night. ...
  So get set to sing along with Meryl Streep on "Dancing Queen" and marvel at how much better you sound warbling "S.O.S." than poor Pierce Brosnan does. (Calm down, Pierce-a-philes ...  his limited vocal range only proves the man's not perfect.)
  So far, Sam's Town, South Point and Town Square have signed on to feature the singalong version of "Mamma Mia!" — check in at www.mammamiamovie.com for more sites; we'll post additional locations when we know.
  Meantime, let's hope it's half as much fun as last year's singalong "Hairspray" ...