Orlando is my boy. I wasn't a book fan when I went to see the first film, I hadn't gotten around to reading Tolkien at that point, so I was going "whoooo's that?" along with the rest of them. Although, the guy who was explaining everything to me wasn't as traumatized as you with your classmates - I bet. We were in our last year of high school, and he and i did end up seeing each other for a while... Hmmm. Maybe that's where it all began, actually, at that fateful FotR viewing!
Of course, poor Bloom had the worst lines ("a diversion" - I'm still giggling over that years later), which, in a way, is just as bad as the way they set up the Mouth of Sauron.
Or maybe not. The Mouth of Sauron did not provide any visual gratification.