Slate published this article about copyrights (by Tim Wu, who is a professor at Columbia Law School and co-author of Who Controls the Internet? ) in respect to the Harry Potter / Tanya Grotter case. Even though it’s almost 3 years old, it’s still a very interesting and enlightning read.
In the end, few people are likely to mistake Tanya Grotter for Harry Potter; it is akin to mistaking Burger King for McDonald’s. The international copyright system is justified in preventing the most basic forms of piracy. But it doesn’t need to stop works like Tanya Grotter. The original Harry Potter is good enough to compete with its foreign cousins. So let a hundred Harrys bloom and let a hundred schools of magic contend.