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Oscar-winning Faye Dunaway was nicknamed "The Bitch" by flight attendants on one airline, where a longtime stewardess tells us the Hollywood legend's in-flight tantrums were so notorious that she was denied upgrades.

Before she boarded one early-'90s flight to London's Heathrow, the stewardess claims that airline management contacted flight attendants and ground staff and told them that under no circumstances should they upgrade Dunaway.

"This was the only time this ever happened in my career," she said. Sure enough, Dunaway turned up at JFK with a coach ticket to London and demanded an upgrade.

The stewardess told us, "She was a total bitch, screaming at everyone and saying, 'Don't you know who I am?' But we refused and sat her at the front of coach, where she could see there were seats free in business and first class, which made her even more furious. When we brought out the meal service, she snapped, 'I am not eating,' as if we would care."

But the attendant added that the flight crew -- taking a cue from "Mommy Dearest," in which Dunaway played a monstrous Joan Crawford who railed, "No wire hangers, ever!" -- got their revenge.

"When she fell asleep, one steward said, 'I'm going to get that [bleep]' and grabbed a bunch of wire hangers and put them on the seat next to her. All the other passengers were snickering. When she woke up as the plane landed, she was wide-eyed with fury, and looked around [for] whom to blame but had no idea who did it. Then she got up and did yoga in the aisle to calm herself down."

Reps for Dunaway didn't get back to us.

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