Lulu Wang on ‘The Farewell,’ the indie hit of the summer

When filmmaker Lulu Wang set out to write and direct a personal movie based on a real-life family saga, she had a clear vision for an American film, largely set in China, mostly in Mandarin. But buyers weren’t biting. Wang tells us about her circuitous route to finally making ‘The Farewell,’ which has turned into the indie success story of the summer.