From Salon, RE: that bizarre documentary short acceptance speech mishap:
What happened was the director and I had a bad difference over the direction of the film that resulted in a lawsuit that has settled amicably out of court. But there have been all these events around the Oscars, and I wasn’t invited to any of them. And he’s not speaking to me. So we weren’t even able to discuss ahead of the time who would be the one person allowed to speak if we won. And then, as I’m sure you saw, when we won, he raced up there to accept the award. And his mother took her cane and blocked me. So I couldn’t get up there very fast.
Much like the live action and animated short fields, in order for voters to cast their ballots for the documentary short category, they have to attend screenings of all the nominees. This tends to make these categories a bit tougher to predict, because they are frequently immune to noise in the media. You screen, you vote.