Unstoppable Force, Meet Immovable Object.

Every once in a while, you will hear or read something so perplexing, so baffling in the ass-backwards-ness of the logic attempted, that you can't help but think, "What if the Nazis were right?" (Not that I'm endorsing anything the Nazis did, except perhaps invent the Volkswagen.)

Murphy: "Dark Knight sucked."
Me: "What? Why?"
...blah blah blah...and now the punch line:
Murphy: "The Joker had no depth."
Me: "Did you listen to anything he said?"
Murphy: "Yeah, he talked WAY TOO MUCH. He says he's an agent of chaos. So why did he spend so much time talking about it? Why didn't he just do it? His too much talking made him a shallow character."

And before I could respond, he left. Here, then, is my concise dissection of the argument: if you think The Joker had no depth as a character, how does taking away his dialogue and his well-portrayed, well-organized mind games, and therefore making him MORE one-dimensional, add depth to him? I didn't even have to say anything to contradict what you said. You contradicted yourself entirely within twenty seconds. Making The Joker a single-layered killing machine makes him more one-dimensional, therefore making him a more shallow character. He's not meant to be a random mysterious force of pure death; the dialogue is IMPORTANT to The Joker's character and who he is. He doesn't just create chaos on a macro-world level; he wants to break down people from within as well, which was the entire point of enacting his incredibly roundabout plan to reach his ultimate goal of corrupting Dent.

Thank God you're not a real film major. You'd fail out so fast.