Director Alison Klayman on 'Ai Weiwei: Never Sorry'
Tom Roston talks with Ai Weiwei: Never Sorry director Alison Klayman about the the artist and his reaction to seeing the film.
The Sundance 2012 Documentary Winners
Any documentary filmmaker will tell you that getting a film into Sundance is a Herculean achievement in itself, but some also come away with an award. Check out a rundown of the 13 prizes given to documentaries at this year's festival.