public MovieImpAction(MovieImp movie, int startFrame, int endFrame){
if (startFrame == endFrame)
CCDebug.Warning ("MovieAction-MovieID:{0}: startFrame should not equals to endFrame.", movie.characterId);
_movie = movie;
_startFrame = startFrame;
_endFrame = endFrame;
_stoped = false;
float duration = (Mathf.Abs(_endFrame - _startFrame) + 1) / movie.fps;
base.initWithDuration (duration);
}