I came across this youtube channel. ITSREAL85VIDS - YouTube
Be advised, explicit language.
I am wondering how they get the mouth animations.
I have sent them a message, but they may not respond.
They also take game sequences, and do animation on the mouth as well.
Here is a Mortal Kombat Game example:
That doesn't look like they've animated them at all. It looks like they just picked their dialog so that it seems to match the movement that was originally in the film. Look on YouTube for Bad Lip Reading. It's actually quite funny.
LOL, YEP, you are correct. Silly me..