I don't think those particular motion pictures contain any evidence of the use of the term, thus I agree, they have no bearing on the discussion.
And I don't think that either of our experiences carry any more weight than the other.
I am surprised that you were not familiar with the term. There are a couple of possibilities I can propose,
1) There is, perhaps a 10 or 15 year difference in our ages. It is quite possible that the terminology was not in vogue during your formative years.
2) The common use of terms differs between classes.
In this case I'm discarding 2, as your previous posts have led me to believe you are not at all unfamiliar with the president of Mexico ( Manuel Labor)