While filming “Singin’ in the Rain,” Gene Kelly (who directed and choreographed the film) is said to have been very cruel to young musical star Debbie Reynolds.

Rumor has it that Kelly insulted Reynolds’ skills as a dancer, berating her for her lack of experience (her background was in gymnastics, not dancing).

The actress got really upset and was later on found crying by Fred Astaire, who apparently helped her through it.

This one goes way beyond bullying and has made news recently as people rethink their respect for Hitchcock.

In her autobiography, the 60s star Tippi Hedren wrote that during their collaboration on the films The Birds and Marnie, Hitchcock repeatedly sexually harassed her.

More specifically, she alleged that he grabbed and attempted to kiss her, while he also arranged for her dressing room to be next to his office, and he used a secret door to access it.

When she rebuffed him, he set about trying to ruin her career.

The infamous sex scene in the movie Last Tango in Paris is part of Bernardo Bertolucci’s legacy, and it was also a scene that humiliated actress Maria Schneider.

As Bertolucci himself admitted, the scene was not in the script and Schneider found out about it right before filming, because the director wanted her to “feel, not to act”! That’s right, he wanted her humiliation to be real.

Schneider said: “I felt humiliated and to be honest, I felt a little raped, both by Marlon and by Bertolucci.”

Judy Garland’s life was by no means easy or happy. From the tender age of 10, she was drugged by her own mother to stay awake for shots and to sleep when she was not needed.

But there was an incident that scarred her soul and is said to have caused her drug addiction.

At the age of 16, when she was filming the Wizard of Oz, she was sexually harassed and groped by her munchkin co-stars who felt they could get away with anything. She was also allegedly propositioned by Studio boss Louis B. Mayer.

In 1980, Duvall’s career hit its stride when she starred in the movies Popeye and The Shining.

However, fame and success couldn’t make up for the psychological pressure she was undergoing during the filming of the latter.

It seems that director Stanley Kubrick was turning into a completely different person when shooting her scenes, and even co-star Jack Nicholson has admitted that. The director verbally abused her on set and made her suffer emotionally throughout the shooting of the movie.

It is believed that this experience has played a significant role in Duvall’s later mental health issues.

Everyone remembers Dunaway’s successful appearance in Chinatown, yet only a few know what was going on behind the scenes.

The actress was in a constant fight with director Roman Polanski, who didn’t even allow her a bathroom break.

Polanski allegedly even felt entitled to walk up to the actress and yank a stray hair out of her head when he felt it was ruining his shot.

Golden Age movie star Lauren Bacall has openly talked about director Howard Hawk’s obsession with her.

The actress has said that his crush on her was hopeless and that he hated that she dated Humphrey Bogard.

It is rumored that Hawks’ ego was so wounded that he tried to make himself feel better by yelling at the actress on set, calling her ungrateful, and claiming it was he who had made her a star. He even threatened to sell her contract to a Poverty Row production company to ruin her career and told her Bogart would probably dump her eventually.

Greta Garbo started working at the age of 14 because her father had died.

Although she was talented and lucky enough to be granted a theater academy scholarship, there were people who didn’t believe in her.

When she tried to get a role in the Swedish film theater academy scholarship, director Mauritz Stiller rejected her for being too fat.

Eventually, she got the role after losing 20 pounds. But later on, she was fat-shamed by MGM’s Louis B. Mayer too.

The kid star, whose acting career started when she was basically a toddler, starred in several movies that promoted a hyper-sexualized version of herself.

But the worst case was director Charles Lamont’s Baby Burlesks (the name really says it all). And Lamont is said to have been particularly cruel to all the child actors, forcing them into a black box to sit on a block of ice when they misbehaved

For her part, Temple didn’t think that particular incident scarred her though. But we’re not so sure about the other kids.

As Meryl Streep admitted in an interview a couple of years ago, on the first day of shooting for Kramer vs. Kramer, co-star Dustin Hoffman slapped her in a more realistic way than he probably should.

“It was overstepping,” she said.

It is rumored that Hoffman also mistreated her on other occasions, and Streep isn’t the only actress to step forward and accuse him of being an abusive bully. In fact, her revelation came in the face of accusations from 3 other women.

When Young and Sheen were filming Wall Street in 1987, they weren’t didn’t get along.

In fact, as Young confessed in a recent interview, her co-star was “awful” to her.

On one occasion, he allegedly stuck a piece of tape reading the “c” swear word on Young’s back while shooting a scene.

This one is a real shocker – and goes far beyond bullying, though we’ll never know if it’s true.

The actress allegedly confessed to her son’s wife, Linda Lewis, she had been raped by Call of the Wild costar, Clark Gable.

As a result, Young got pregnant with Gable’s child, a secret that was revealed only after her passing.

At the time, she had claimed her daughter was adopted.

Miles and Burt Reynolds were secretly having an affair while filming The Man Who Loved Cat Dancing. But when Miles’ business manager, David Whiting, found out about it, he got mad because he was obsessed with her.

Whiting allegedly attacked Miles in her hotel room, slapping her across the face when she returned to her room after a nightcap with Reynolds.

But when Whiting was found dead, Miles admitted that he did more than slap her – he beat her. And she went to spend the night in Reynolds’ room only to find him dead of an overdose in her own room the next morning.

There’s still quite a bit of mystery around the case (such as why Reynolds may have removed the pill bottle he was holding) and why there was so much blood at the scene despite the coroner finding his death to be caused by an overdose.

This caused a scandal that followed the movie and was one of the reasons why it was not a success.

Chaplin was a notorious perfectionist when it came to shooting his films and City Lights was no exception. Chaplin lost his mother during filming but also drove himself mad with stress in the process of making the film. The problem is, he took it out o other people.

His co-star Virginia Cherrill, young and inexperienced at the time, suffered greatly during the making of the film.

Chaplin was relentless in forcing her to repeat the simple movement of handing him a flower for 4 straight days. He also berated her for asking to leave the set to keep a hair appointment, telling her never to return, and was cruel to her for weeks on end until simply firing her.

When he was unable to hire a replacement, he tracked her down and asked her to come back. She did, but asked him to double her salary.

Mabel Normand, one of the funniest and most talented actresses and directors of her time, has been underappreciated to this very day.

Normand was already a veteran when Charlie Chaplin entered the scene and immediately felt overwhelmed by the filming process. In fact, she became his mentor and directed many of his movies in which he starred as his famous Tramp character.

But he wasn’t keen on giving her much credit and even jumped ship to a new film company, taking all the mannerisms she taught him with him.

Her career declined because of other scandals she was involved in, but she never got the credit she deserved to begin with because Chaplin was seen as the real “star.”