There's some truth to that. But most movies don't depict people as being worthy of hate purely for being rich. They depict the hateworthy rich as people who got their money through disreputable means or who use their wealth to abuse others.

And I think that's in line with the attitudes of the general public. Plenty of people despise rich investment bankers or insurance company executives but most of those same people don't hate wealthy surgeons or engineers. When people complain about the high cost of medication no one gets mad that the research scientists are paid well. But they hate big pharma CEOs.