Widescreen film was, for all intents and purposes, nonexistent before 1953. And that’s just Hollywood. I’d imagine it took longer to catch on in India, but I’ve only ever seen a handful of 50s Indian films… can’t remember any being widescreen.
So there’s your first hint. Can’t be much help other than that
Talk to them. Most people have some redeeming qualities. It might also help them understand you and become less bigoted, although that won’t happen overnight (google Daryl Davis for some interesting info/Ted Talks)