Despite being a HUGE Tolkien fan since I was a wee nipper, I'll be giving the Hobbit films a wide birth. Can't forgive Jackson for what he did to The Lord of the Rings, a director changing the story to satisfy his own ego is unforgiveable.

Now for the Bourne stories, I would say it didn't really matter. The canon was hardly unique enough to begin with. Tolkien's however is arguably the first and finest fantasy series of all time.