Ever since Darren Aronofsky’s fantastic Black Swan came out in theaters, there have been rumblings about how much of it was inspired by Satoshi Kon’s Perfect Blue. And, indeed, both movies are quite superficially similar, as pointed out in the linked article. But both films strike different paths with similar material — I’d say they are using the same map and traveling the same area to end up in different spots when they reach their respective destinations. Black Swan and Perfect Blue take a mixture of inner darkness, sexual guilt and exploitation, and come to totally different ends with them.
(By the way, I am going to spoil the shit out of both movies in this post, so read with caution if you have not seen one or both. They are both great movies that are worth watching.)