def findLastMovieLine(self, movie):    
        """ Cycle through the whole movie, figure out the lowest numbered
            line that == blank on all frames, return that #. Used to trim blank
            lines when saving. """
        movieLastLine = 1
        for frame in movie.frames:
            frameLastLine = self.findFrameLastLine(frame)
            if frameLastLine > movieLastLine:
                movieLastLine = frameLastLine
        return movieLastLine
 Cycle through the whole movie, figure out the lowest numbered
            line that == blank on all frames, return that #. Used to trim blank
            lines when saving. 
durdraw/durdraw_ui_curses.py