* StarDerailingRole: Maxwell Caulfield blamed this film for killing his budding Hollywood career. After the movie bombed, Paramount dropped his contract. In his own words, "It took me ten years to get over ''Grease 2.''" (He did find relative success on the ''Dynasty'' spin-off ''The Colbys'' only three years after this film.)
** Michelle Pfieffer's career nearly suffered this because she was initially considered to be rejected from working on ''Film/{{Scarface 1983}}''.
* RetroactiveRecognition: Goose is [[WesternAnimation/TheIronGiant Kent Mansley]]. [[CatchPhrase He works for the government.]]
** Michael is [[JamesBond Bond]]. [[{{Nightfire}} James Bond]].
* WhatCouldHaveBeen: Paramount was envisioning up to three more sequels and possibly a TV series. Would ''Grease 3'' have worked with the mid-Sixties and [[Music/TheBeatles British Invasion music]] as a backdrop? Would ''Grease 4'' have dealt with hippies? Would there have been a Seventies version, sorta like ''Film/DazedAndConfused'' with musical numbers? We'll never know.
** ''[[RecycledTheSeries Grease: The TV Series]]'' would most likely have been ''Series/HappyDays'' [[XMeetsY meets]] ''Series/{{Glee}}''.
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