"Congratulations, you all look amazing! Easy, you can lean on each other if you need to, a little wooziness and balance issues are normal. We were surprised you all decided to go through with this just for the sake of our movie, but you're all consummate professionals, and we appreciate your willingness to do whatever it takes for the role. You'll be fully clothed of course, as was scripted, but audiences will be able to feel the authenticity that comes from living as an actual cow woman.
This is going to look fantastic on screen...and don't worry, we'll do our best to book further roles for you as the cows you are now. Hm? Changing back afterward? ...There is no 'changing back.' The procedure is permanent, it said as much in the packet you all received. That's...that's why we were taken aback by your willingness. Now, hang on...hold on, don't freak out on me! Look, you all signed the release forms. What's done is done, and it'd be better to just accept it and move forward, yeah? We've got a moo-vie to shoot! I'll see you in a couple weeks after recovery and orientation."