Mostly I take photographs in times of research. Whores' Glory was shot in 30 days, 10 days for each segment, but the research for each part lasted a couple of months.

If you connect with someone just once, that's something. But if you can connect twice, that's something else.

I've made many documentaries, but prostitution was the hardest in terms of gaining the trust of the people being filmed.

A young man in Bangladesh can't even hold hands with a young woman. Without marriage there is no kissing, no holding hands, no going anywhere. So young boys can only go to the brothels for sex before marriage.

La Zona is such a closed area, a dangerous, outlaw area. My time in the Zona was a time outside of society, almost out of the real world. And the girls there had such a sense of irony and sarcasm. They were also really interested in my film. They'd be like, "Thank God we live in Mexico, because our kind of prostitution has a heart. We wouldn't want to sit behind a glass cage or be sold by our own mothers. We have free will."

In the Bengali language, there's not a real word for blow job. They call it "doing the ice cream."

In Bangladesh a prostitute normally wouldn't even undress for a man. He pays, she pulls up her sari, and he's done in 20 seconds.