* Almost all traditional TheatricalProductions have this to an extent--whereas a film or TV series have credits in them, and books feature acknowledgements, etc. etc., if one wants to know who the cast and crew of a particular production are, or sometimes even what the setting is, one needs to have a program from that production (or look it up online...), which will have all that listed. With the exception of ''Theatre/LesMiserables'', no shows generally use title cards to indicate things, and with the exception of ''PassingStrange'', no show usually has the names of the cast and crew listed aloud at any time during the run.
* If you want to completely understand the underlying themes, vague plots, and significance of all - well, most of - the peculiar characters and acts in a given Creator/CirqueDuSoleil show, you will probably have to buy the souvenir program and/or explore the official website. According to the 20th anniversary book ''20 Years Under the Sun'', the creators prefer that people watch the more abstract shows (as most of their productions in TheNineties were) and create their own interpretations of them rather than have the creators' ideas in mind all along.
* In ''TheDrowsyChaperone'', Man-in-Chair never names Trix or Geroge's actors, but the CD case to the 2006 recording gives them names. Because this could have been created for the CD alone, it could also be considered LooseCanon.
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