function movie = loadFrames(start, ending)
    for i = start:ending,
        if( i < 10 )
            suffix = strcat('000', int2str(i));
        elseif( i < 100 )
            suffix = strcat('00', int2str(i));
        elseif( i < 1000 )
            suffix = strcat('0', int2str(i));
        else 
            suffix = int2str(i);
        end;
            
        movie(i-start+1).cdata = imread( strcat('images/frame_', suffix, '.jpg') );
        movie(i-start+1).colormap = [];
    end;