Adding Multimedia --inverted image

[adele]

Hi,I'm trying to add an AVI video to this script.But the screen showed inverted image when I press the "m" key,I mean it inverted left to right,following is my script:

def mykeyboard(key):
  # Play a movie on the screen
  if key == 'm':
    mymovie = viz.add('finalfantasy.avi.')
    mymovie.loop(viz.ON)
    mymovie.play()
    screen.texture(mymovie)