If people are a fan of Seth Rogen, then I expect they will like GH. I personally don't like him one bit. The GH movie is OK....when Seth is absent...but since he is the title character, he is in it a lot, so it ruins the movie for me.
The Spirit is what astounds me. Miller claims he is a huge fan and made the movie as a tribute to him. I ask him....exactly what comics of the Spirit did you read? Denny Colt is a normal guy. No superpowers. No magical powers. just a tough good man who fights crime. He is a cop on a case, shot and left for dead. He decides to act like he is dead, and after his wounds heal he puts on a mask and fights crime, and in the course of this women swoon for his combination of good looks, strength, and being a sweet guy who is nice to women and children........Miller decided to make him scientifically resirected from the dead, have Wolverine's healing abilities, and now have a pheromone power that makes women throw themselves at him.