Er... you actually can copyright a title. I mean it depends on the title, I mean if it's like "The Dog", well good luck that! But if it's something distinctive then, yea, you can.
Hell- think of it like this- You can make a document that's 10 pages long and have the title somewhere inside of it. The title would be protected from plagarism (which is a copyright violation), provided it's long enough and distinctive.