I don't know if anyone has seen this but this is a pre-crazy River Tam video that was leaked out before the movie Serenity was released. It's Summer Glau (river) and an interviewer/doctory (Joss Wedon) going over various sessions just after River's time at the institute. It's pretty rad and take a look if you haven't already seen it!
http://youtube.com/watch?v=mKYFNsnO-tc