Take a look here.
I was bored one day and decided to YouTube search this. I was pretty surprised to find it actually. Even more surprising, I found myself unable to watch the injection. It made me cringe and feel scared for Kate. Given that I've had more injections than I can count (and I used to), this is rather ironic. However, I pretty much behave the same way as Kate; I don't panic or flinch. It's very dangerous to do that actually--once, I learned that the hard way and ended up with a pool of blood that developed along the outside of my iris. Apparently, as the needle was entering, my head recoiled, and the needle knicked me. Though I recovered and the spot diminished, it "outed" my vision problem and I ended up having to reveal my problem to several friends in the course of one week.
Anyways, happy viewing. I posted it for a couple reasons. 1) I get a lot of questions about what the heck an injection involves. 2) I'm surprised it was on YouTube. 3) It's kind of fun to freak people out.