I'm not sure people understand...
So judging by some of the posts I have seen on this board I'm wondering if people are not interpreting this movie correctly?
Everything can be laid out by the last part of the movie.
Martin wakes up in BILLY's house, with a shih tzu dog which belonged to CHARLIE who was supposed to have been shot in the stomach, and taken off to jail.
When I saw this it made things pretty clear that the events of this movie were all in MARTY's head.
The only thing that throws it off is the credits scene where the serial killer killer calls him on the phone, saying he wants to kill him on Tuesday but then changes his mind. What is the purpose of this scene?
Thing that gives it away is that he changes his mind and doesn't feel like killing him. The other thing is that where he is calling from seems to be displaced in time. The cars around him are all super oldschool cars, the buildings, the street lights. It's like he's calling from the 1950's or 60's. Clearly this cannot be the case.
So there it is. This whole movie was MARTY dealing with all these characters in his head trying to write a book. None of it actually happened.
Oh and I gotta say the funniest scene in this entire movie was when Christopher Walken is out on the street and the guy grabs his shotgun and tells him to put his hands up and he denies them. I laughed so damn hard at this. When the guy is like...where are your friends? and he said I don't know and the other guy goes yes you do know!? He goes no I don't know...in a super soft voice. Oh man I lost it. It made me feel like two 5 year old arguing. Best scene ever. www.youtube.com/watch?v=9yHYAG01aaY