Question: How old is Edward?
Answer: As the other response says, the number of years is never stated. Physically, I think he is supposed to look about twenty years old. Bill wants him to start a proper business. None of the adults seem to think that he should be in school.
Question: After Willy takes Sam's wallet, why did Sam attack him? The scene happened so fast I can't figure out why.
Answer: Willy struck Molly (knocking her to the ground) when she tried to intervene, thus making Sam attack him in response. This fight led to Sam getting shot.
Question: The IMDB states that Bubba Smith was in this movie as himself. What scene is he in?
Answer: He's at the salad bar when the gremlin pops out and grabs a guy. The guy they grab is former football star, Dick Butkus.
Question: What is the deal with everyone saying "beep beep" to Ritchie every time he tells a joke?
Chosen answer: It's their way of telling Richie to be quiet. To get him to stop talking.
Answer: In the book it is explained that they are telling Richie to shut up.
Question: Why does the gargoyle have to kill Preston after he broke his vow? She loves him and even if he did go around telling people about her, nobody would obviously believe him.
Answer: While it's not explicitly said in the film, it seems Preston breaking his vow turned her back into a gargoyle. She didn't have a choice and since he swore on his life never to say anything, she had to kill him. Plus, the stories in the book don't have happy endings.
Question: The movie never provides a explanation for why the cops don't go in the Warzone area. Why don't they?
Answer: These areas are controlled by gangs and it is implied the police won't enter out of fear.
Question: Does Jamie leave her at the end, after seeing her kissing outside, or will he always be there with her without her knowing it?
Chosen answer: I've always assumed that Jamie does indeed leave, going on to wherever he's going on to. My read of the story is that Jamie has come back to help her move on with her life (whether he knows that himself is unclear). As she has begun to move on, he himself can now go to whatever awaits him.
Question: What about those kids he had, what happened to them?
Answer: Nothing, they're from an alternate reality, Jim Belushi was shown a possible future if he had hit that home run. A different life, job, wife and kids.
Question: What was in the red backpack that John Ritter was going to give Michael Richards as ransom for Jr, since he didn't have the 100 grand that he promised him?
Answer: It is never stated.