membership is free!

There is a secret group out there and members don't even know who else belongs until a particular line is uttered. Upon that initiatory communiqué other members' ears prick up and eyes send a knowing and accepting glance to their newly found affiliate. Today Bill came home announcing a name of a friend previously considered only a named face in our vast repertoire of acquaintances as a 'Movie Liner'.
Bill and I are both members of this significant & surreptitious society. We are raising children whose exceptional talents may even [someday] surpass ours. Let me explain how membership occurs, I know you are eager to learn and become part of such a clandestine group of such astute near Mensa misfits.
Examples of 'Movie Line Society' (MLS) comebacks:

You're waiting on somebody to hurry up so you can get going...
MLS- "Why don't you get some pants on so we can fight crime today"

Something gets caught in your throat and you sound all 'croaky'...
MLS- "You are in the pit of despair"

A sound is emitted that nobody wants to claim...
MLS- "Wasn't me!" (while pointing to another person)

Someone asks you to repeat something...
MLS - "Am I goin' to fast for ya?" (said with a slow Texan accent)

Someone ends a sentence with, "it's possible"
MLS - "pig"

Maybe I should say that a wise MLS will not always actually say what comes to his mind- but rather think it, which can make finding other MLSers hard unless you can get them into an environment that invites an MLS comeback.

I could go on for hours with examples, but if you don't understand by now, another forty MLS lines won't be of any more worth to you than a hairbrush in an igloo building contest - know what I mean?
I treasure the memories of our family sitting in the living room speaking in conversation made entirely from lines of movies or TV shows. Such deep and meaningful concepts are exchanged in those sessions!
It is a little aggravating when I come up with a witty line of my own (and yes it has happened...once...) and everyone says, "What's that from?"

Now- just to see how closely you qualify for MLS membership...can you name where the lines come from in the examples?