Best if the old movie is made before 1990

Movies that are most closest and similar to real life, but NOT based on a true story

I know that La La Land makes countless references to older Hollywood movies and they even showed clips from another movie. How do they get away with copyright by using movies from other studios?

Since we had a post about the most friendliest countries, we should look at countries that have unexpected friendly people, not the usual answers like Ireland, Scotland, Canada, Taiwan, etc. For me it’s Montenegro. Londoners are considered to be cold and rude but I find them to be very pleasant with me.

Since we just had the friendliest, let’s look at the opposite. Not exactly the one with the rudest locals but the unfriendliest, be it scams, pickpockets, aggressive touts, unfriendly environment, or bad service.

For me Ireland and Taiwan, how about some others