It is only by reflecting on the past that one can create a better future.

S21' was a film about corporeal memory and how the same gestures repeated many times years earlier can be reawakened.

In all of my films, there is a desire to testify, to interrogate the past.

When the Khmer Rouge reached Phnom Penh, the first thing they did was to evacuate the population. Then they took over. The point of a revolution is to bring justice to the people, so even if you don't have proof of sabotage, you manufacture it.

The first time I saw nitroglycerine was in the beginning of the Crimean War. Professor Zinin in St. Petersburg exhibited some to my father and me, and struck some on an anvil to show that only the part touched by the hammer exploded without spreading.

Fundamentally, if there is any secret, it is about the need to find that peace and calm in our personal space with music, as most of 'learning music' is about listening to music and practicing over and over again.

In North America, what happens often is that they put race before nationhood. Everyone here is Hispanic-American, Chinese-American, African-American. But really, we're just North Americans of all these different descents. The only time I notice North Americans becoming national is when a war happens or a crisis happens.

In situations of military conflict, civil strife, lawlessness, bad governance, and human rights violations, terrorists find it easier to hide, train and prepare their attacks.