In the United States, this film was banned in a number of states and cities. Although no longer enforced, some of the laws were never officially repealed. Therefore, it is still technically illegal for this film to be shown some areas of the USA.
Numerous other bits of dialog were removed that depicted the "normal" humans as disgusting creatures and the "freaks" as gentle and sympathetic (destroying the social critique of intolerance Tod Browning was attempting to construct). While the circus awaits word on Hans's declining health, one of the Rollo Brothers coldly remarks, "You'd think the world was coming to an end - just because a mangy freak's got a hangover." In another scene, Madame Tetrallini responds to the Rollos' taunts by defending the humanity of her "children," "Augh, you cochons - you beasts... They are better than you - all of them - you two dogs!"
One woman, after seeing "Freaks", wrote a letter to Tod Browning at MGM, exclaiming that "You must have the mental equipment of a freak yourself to devise such a picture." Another viewer complained, "To put such creatures in a picture and before the public is unthinkable."
Premiere voted this movie as one of "The 25 Most Dangerous Movies".
Several variations on the ending are still in existence. However, the footage of Hercules singing soprano was not included in any of the foreign versions and is now regarded as lost.
The electrical equipment on the set was so badly grounded that crew members were frequently shocked.
The film was rejected for UK cinema showing in 1932 and again in 1952. It was finally passed for cinema with an uncut X rating in May 1963, making it one of the longest bans in UK film history.
The film's original ending showed Hercules singing soprano in Madame Tetralini's new sideshow because he has been castrated by the freaks. After intensely negative reaction by preview audiences, this scene was cut.
The on-screen romance between Hans and Frieda was very subdued because the roles were being played by real life brother and sister Harry Earles and Daisy Earles.
The original casting had Victor McLaglen as Hercules, Myrna Loy as Cleopatra, and Jean Harlow as Venus. All balked at the prospect of co-starring with "sideshow exhibitions".
The reunion of Hans and Frieda, seen at the end of most prints, was not part of Tod Browning's original cut. It was added during the re-editing to give the film a happier ending.
The tune that 'Angeleno' plays on his flute during the final confrontation between Cleopatra and the bedridden Hans is the "Mournful Tune" from Richard Wagner's opera "Tristan and Isolde", played in the opera while the dying Tristan waits for Isolde's ship to appear on the horizon.
Was originally banned in Australia.
When MGM production chief Irving Thalberg gave Willis Goldbeck the assignment to write a draft of a screenplay based on Clarence Aaron 'Tod' Robbins's story "Spurs", the only direction he gave Goldbeck was that the script had to be "horrible". The writer completed his draft quickly and turned the script over to Thalberg. A few days later, Goldbeck was summoned to Thalberg's office, where he found the producer slumped forward on his desk with his face buried in his arms, as if overwhelmed. After a moment, Thalberg sat up straight and looked at Goldbeck. "Well," said Thalberg, "it's horrible."
When uncredited producer Dwain Esper traveled the country with this film, he used some of the most lurid and suggestive promotions. For some engagements, if he was satisfied that it was safe, the feature would be followed by a square-up reel. This reel was basically nudist camp footage.