Yeah, I agree, the movie really buries the lede because it's not interesting until Esca shows up. I love that scene in the arena. I do like Marcus, though, a lot, I think he's this very interesting mix of strength and vulnerability that appeals to me. He feels so much and is really open about it. I enjoy the character greatly...but it's not still not interesting until Esca shows up. ;)

Here is that post, I hope it's helpful: http://regann.dreamwidth.org/435733.html