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* ChannelHop: Studio hop rather than channel hop, but zig-zagged. The film was supposed to be handled entirely by Creator/ColumbiaPictures, but the hellish production as mentioned below and lack of studio confidence led to concern of a possible shutdown. [[Creator/TwentiethCenturyStudios 20th Century Fox]] stepped in to help finish the film and took domestic rights as part of the deal (Columbia kept international rights), and the rest is history. When streaming service Pluto TV runs the film, it's provided by Sony (Columbia's current parent company), so the print has the film's German-language title card.
* CreatorBreakdown: Leading to a heart attack which the real Creator/BobFosse survived, but {{Expy}} Joe Gideon doesn't. Fosse would die of a heart attack eight years later, however.
* DeletedRole: Julie Hagerty, who was once romantically involved with director/choreographer Bob Fosse, was cast in a small role in this film. Her role ended up on the cutting room floor.
* DevelopmentGag: During the final number, one of the executives points out to AuthorAvatar Joe Gideon "this must have cost a fortune!" (referring to the outlandish nature of the closing act). This was a sardonic reference to the fact the film itself went wildly over-budget.
* InspirationForTheWork: According to Creator/ShirleyMacLaine in her autobiography ''My Lucky Stars'', the idea for this film was hatched when Bob Fosse was hospitalized for a heart attack. [=MacLaine=] claims she was the one who gave him the idea to do "a musical about his death", though she said Fosse seemed to not remember this later. However, Fosse did offer her the role of Audrey Paris, she wrote.
* TheOtherMarty: Sandahl Bergman replaced Cheryl Clark during filming when Clark refused to take her top off for "Airotica."
* ProductionPosse: Several regular Fosse dancers crop up here, including Ann Reinking, Ben Vereen, and Sandahl Bergman.
* RealLifeRelative: Creator/BobFosse's 16-year-old daughter, Nicole Fosse, appears briefly as a dancer, doing stretches in front of a vending machine, who is asked, "Can't you do that somewhere else?" while Joe Gideon is introducing his new idea for the Air-otica number.
* TroubledProduction: The movie went well over its budget, much to the fury of the studio. The finale as it stands was a quick compromise to avert further ExecutiveMeddling.
* WhatCouldHaveBeen:
** Creator/RichardDreyfuss was originally cast in the role of Joe Gideon but left the production during the rehearsal stage, citing a lack of confidence in the production. He later admitted that he made a mistake in passing up the chance to work with Creator/BobFosse. Other candidates included Creator/AlanAlda, Creator/AlanBates [[note]]Deemed "too English"[[/note]], Creator/WarrenBeatty[[note]] Who was interested, provided that Joe didn't die at the end[[/note]], Creator/ElliottGould, Creator/GeneHackman, Creator/JackLemmon[[note]] Rejected, too old.[[/note]], Creator/PaulNewman[[note]] Turned it down, as he was uncomfortable playing a dancer. He didn't even bother reading the script.[[/note]], Creator/JackNicholson, Creator/GeorgeSegal and Creator/JonVoight. Fosse even considered playing the role himself. Producer David H. Melnick pointed out that Fosse, who had a history of heart problems, wouldn't survive the shoot.
** Creator/ShirleyMacLaine was originally offered the role of Audrey Paris. Had she taken it, it would have provided an interesting ActorAllusion to her role as Charity Hope Valentine in the film version of ''Theatre/SweetCharity'' since Charity was played by Gwen Verdon -- whom Audrey Paris was based on -- in the original 1969 Broadway run. [=MacLaine=] ended up doing ''Film/BeingThere'' instead, which itself is interesting in that these two films went up against each other in the Best Actor category at the UsefulNotes/{{Academy Award}}s (neither won).
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