There are a lot of great movies out there, but it's pretty easy to tell that one holds a special place in your heart when a line from it just comes out in normal conversation.
It doesn't hurt that the best writers can always sum up the situations we get into with a perfect quip. And once that one-liner is in your head, it's pretty much impossible to get it out.
Thanks to these movies, whether the people we're talking to can spot the quote or not, we'll look super clever when the right situation arises.