matlab movie subplot

Bmovie=1;
rect = get(gcf,'Position');
rect(1:2) = [0 0];

for iRound=1:NRounds
subplot(1,2,1);
image(Site+1);
colormap(gray(2))

hold on
subplot(1,2,2);
v=voronoi(X(:,2),X(:,1));
M(:,Bmovie) = getframe(gcf,rect);
Bmovie=Bmovie+1;
end

movie2avi(M,'voronoi10_30iterations.avi','fps',1,'quality',100,'compression','None','colormap',gray(2));