Because international distribution involves so much, you've got to expend a lot of effort and money. And the control is all with the distributors and the theaters. What one reaps is really limited. The economic returns abroad are not like what you get domestically from ticket sales or selling rights.
因為國際發行，牽涉很廣，需要付出很多心力，花費也相當大，整個控制權又都在片商和戲院，實際收到的有限，經濟效益反倒不如在國內票房及賣片所得。