That bit with the two guys in the restaurant ona double date and start talking about time travel and do some Back To The Future references and the girls are at the table like wtf?!?!?!?

Well I remember watching this with my girlfriend and she was tellin me how her friends were just staring at the screen like..."i don't get it" at the references!

It ws quite hilarious.

But the whole point of the this thread is, can anyone share any experiences where this happened in movies?
My rather slow friend whilst watching No Country For Old Men. I still don't think he ahs any clue what happened in the last half hour.