Screwing over special effects companies with contracts that won't keep the lights on, resulting in them going under, sometimes, right after winning an Oscar for their efforts.
Screwing over talent with contracts that offer points on the box office, and then claiming that their biggest hit of the decade made no money.
Screwing over the First Amendment with their aggressive litigation, DMCA abuse, and aggressive lobbying efforts to make the law value copyright over freedom of expression.
Hypocritically lambasting "the little people" for the impact of their infrequent travel and modest lifestyles, while themselves flying around the world to shoot movies or just turn up at social events to have their picture taken and get one of those swell swag bags.
Watering the luxurious lawns of their mansions during a severe drought, and exploiting undocumented labor to work on them for less than minimum wage.
Abusing the young, eager new talent that is constantly arriving in search of opportunities.
Engaging in the worst nepotism of perhaps any single industry.
Bringing in auteur directors, and trying to foist off a Batman reboot on them.