Answers to the Movie Meme

I know I promised another shot to guess one of these, but I've been busy with other things for a couple of days, and I figured I'd just go ahead and put the answers out there.  Here are the unguessed:

2) Right. Well, I have to - I have to go now, Duane, because I, I'm due back on the planet Earth.  - Annie Hall

4) I have a headache in my entire body. - Seems Like Old Times

5) Let me explain it to you. Mitchell's the man. I'm the idiot. You're the screw-up. And we're all losers. Welcome to music town. -Empire Records

10) I'm an adult. I want to have fun. I want to go to Liverpool and discover the Beatles. - Peggy Sue Got Married

12) "He's three years old, gentle as a kitten, and likes dogs." I wonder whether Mark means that he eats dogs or is fond of them? -Bringing Up Baby

13) Ahh, a bear in his natural habitat - a Studebaker. - The Muppet Movie