" All information on this fansite is the copywrited property of Larian Studios"
I disagree. First of all my fansite covers more games than Divinity so that statement would be incorrect. But even if it wasn't, the walkthroughs on my site for Divinity are not copyrighted property of Larian Studios. Nor is many other of the content that is available there. If it's copyrighted at all it's copyrighted by me or whoever else created the information. It would be the same as saying that a strategy guide that is made by company X is the copyrighted property of Larian Studios, which is not the case. It's the property of the publisher.
What is copyrighted probably is the artwork, screenshots and animations.
Although I'm not sure about the screenshots as when they are made by me, then the content is unique in a sense.
So in short a better statement would be:
"Some information on this fansite is the copyrighted property of Larian Studios"