It doesn't happen often, it's what you dream and hope for. We are happy, but we want to make sure these changes have teeth. What we want to get across most is that this is a real opportunity for the military. They can step up and be a leader on misogyny and gender issues.

[Working with survivors] it's just a whole different level of concern and that is something that was categorically different working on this film than any other project we had done.

Be very focused. Do your homework so your research and claims are unassailable. Make sure it is bulletproof and then make sure you are really focused. The thing I find is that the issues are usually so large that you try to cover a lot of ground. That's a natural impulse.

You always try and make a film that is a letter that will be read and we are so glad that it is being read by the right people in the right place and is inspiring change. It is also gratifying that the survivors are finding it healing and transformative. That's been really great.

One of the top challenges is the fact that you are dealing with survivors. Every time you deal with a documentary film subject it is fraught with obvious minefields but when you are dealing with a population that is severely traumatized and trying to recover from that trauma there is an extra level of vigilance and care and attention that has to be implemented all the time at every level.

Me and Kirby are very collaborative and it changes from film to film. The first project we worked on together, Derrida, we co-directed. The last film Outrage, I was the producer and he was the director. This film was much more of a collaboration - he is the director and I am the producer - but this is a film by both of us.

We really want to send the message that commanders need to understand and be accountable. We saw that with the Catholic Church. No one cared when they went after the priests, but when they focused on the bishops then things began to change. And we see that analogy working with the military.