History AdaptationDisplacement / LiveActionFilm

* ''Film/TheCrow''. The 1994 film was a critical and commercial success, but how many people have read [[Comicbook/TheCrow the original graphic novel]], first published in 1989?

* ''Film/MammaMia'' is an adaptation of [[Theatre/MammaMia a musical]] that opened on London's West End in 1999 and on Broadway in 2001. Both productions were still running at the time of the film's release, with the Broadway production closing in 2015 while the West End production still runs to this day. Due to the film's popularity, the stage musical has become a popular choice for schools and community theatres to produce, although it leads some to believe that the stage musical is a ScreenToStageAdaptation, and not the other way around.

* ''Literature/GentlemenPreferBlondes'' is most remembered as the title of a 1953 movie starring Jane Russell and Creator/MarilynMonroe. It's sometimes forgotten that this was loosely adapted from a Broadway musical (but not so loosely as to discard the show's most famous songs) adapted from a best-selling novel by Anita Loos.

* ''Film/TheDeep'': Like ''Film/{{Jaws}}'', this is another Creator/PeterBenchley adaptation better known than the book that it adapts, although not to nearly the same degree.

* The 1990 film ''Film/{{Mermaids}}'' was adapted from a 1986 novel of the same name written by Patty Dann. Seeing as how the novel was unacknowledged on the film's trope page for a while, it's probably safe to assume that the film has overshadowed the novel.

* Not many people are aware, despite Daphne du Maurier getting due credit, that ''Film/TheBirds'' is based on one of her short stories.

* ''Literature/TheBlindSide'' has been almost completely displaced by the film version. Most fans of the film aren't aware that it's based only on part of the book, specifically on the life of the film's subject Michael Oher. The complete book title, ''The Blind Side: Evolution of a Game'', hints that there's a lot more to it. The book also discusses the "evolution" of Oher's position of left offensive tackle at great length.[[note]]The "blind side" is the side of the field that the quarterback can't see when in a normal throwing stance. For a right-hander, which the vast majority of quarterbacks are, that would be the left side of the field.[[/note]]

* ''Film/TheExorcist''. Yes, there was a novel before the film, which in turn was based on allegedly true events that took place in the Alexian Brothers Hospital in St. Louis, Missouri. In RealLife, a young ''boy'' was allegedly possessed, but the novel's author changed it to a girl either out of respect or just for fiction's sake.

* ''Film/MammaMia'' is an adaptation of [[Theatre/MammaMia a musical]] that opened on London's West End in 1999 and on Broadway in 2001. Both productions were still running at the time of the film's release, with the Broadway production closing in 2015 while the West End production still runs to this day. Due to the film's popularity, the stage musical has becoming a popular choice for schools and community theatres to produce, although it leads some to believe that the stage musical is a ScreenToStageAdaptation, and not the other way around.

* In an example of an adaptation into a third medium causing the displacement, the long-running ''[[Series/{{Mash}} M*A*S*H*]]'' series has led many people to forget that [[Film/{{Mash}} the film on which it was based]] is itself adapted from [[Literature/{{Mash}} a novel]].

* ''Theatre/{{Annie}}'' is a famous musical from TheSeventies about a little red-headed girl who goes through a RagsToRiches story. This became a movie in TheEighties (released in 1982, to be exact). The musical is based off a [[PrintLongRunners long-running]] comic strip called ''ComicStrip/LittleOrphanAnnie'', who most people probably only recognize from ''Film/AChristmasStory'' or ''WesternAnimation/RobotChicken''. Arguably both the stage musical and the strip have been displaced by the 1982 movie.

* Hardly anyone remembers the Patricia Highsmith novel that ''Film/StrangersOnATrain'' is based on (though the novel gets a reference in ''Series/{{Castle}}'').

* While the novel ''Literature/CharlieAndTheChocolateFactory'' is hardly forgotten, its story and characters are better known from the 1971 film adaptation ''Film/WillyWonkaAndTheChocolateFactory'', which became a popular classic. People accuse the 2005 adaptation ''Film/CharlieAndTheChocolateFactory'' of not being "faithful" to the 1971 film, despite the fact the 2005 film is a much more faithful adaptation of the original novel, and it's actually the 1971 film that heavily deviates from the original source material.

* Disney managed to displace itself with ''Franchise/PiratesOfTheCaribbean'', which is better known than [[Ride/PiratesOfTheCaribbean the ride]] in Ride/DisneyThemeParks that inspired it. They have since modified the ride to feature Jack Sparrow animatronics in place of some of the generic pirates they had before.

* ''Film/{{Lifeforce}}'', aka the "Naked Space Vampire Movie". While the movie is mostly cult, [[Creator/ColinWilson the book on which it is based]] is even more obscure nowadays.

** Likewise, the ride displaced the film ''it'' was based on: the 1950 version of ''Film/{{Treasure Island|1950}}''. Hence, the film series is based on a ride, based on a film, based on [[Literature/TreasureIsland a book]].

* ''Literature/ChildrenOfMen'' was originally a 1992 dystopian novel by author P.D. James, which has since been completely overshadowed in most pop culture circles by Creator/AlfonsoCuaron's overly gritty-realist [[Film/ChildrenOfMen 2006 film adaptation of the same name]] which features Hollywood stars Creator/CliveOwen, Creator/JulianneMoore and Creator/MichaelCaine.

* The 1938 film ''Film/{{Algiers}}'' is a remake of the 1937 film ''Film/PepeLeMoko''. The producers of the remake [[MissingEpisode tried to destroy all copies of the previous film]], and darn near succeeded. Also, in neither film did Creator/JeanGabin or Creator/CharlesBoyer say any variation of "[[BeamMeUpScotty Come with me to ze Casbah]].": Only ''Algiers''[='s=] [[MissingTrailerScene trailer did]].

* ''Film/GoneWithTheWind'', InUniverse example: On an episode of ''Series/{{Roseanne}}'', despite being told three times that ''Gone With the Wind'' was originally a book, Roseanne still can't contain her astonishment.

* ''WesternAnimation/{{Jem}} and The Holograms'''s [[Film/JemAndTheHolograms2015 live-action adaptation]] was anticipated to be this to the target audience of teenagers, as the cartoon came out 30 years before the film. Ultimately averted, as both the cartoon and [[ComicBook/JemAndTheHologramsIDW IDW comic adaptation]] are well known, the film was too unfaithful for older fans and too poorly marketed to attract new ones, so it sunk like a stone at the box office.

* ''Film/{{Hairspray}}'': Everybody knows the 2007 musical... which was adapted from a Broadway show that was based on [[http://www.imdb.com/title/tt0095270/ a movie released in 1988]] which ''wasn't actually a musical''.

* The movie ''Film/FastTimesAtRidgemontHigh'' is remembered for many things today. Creator/SeanPenn's breakout performance as Jeff Spicoli, his "Hey bud, let's party" CatchPhrase, his battles with Creator/RayWalston and the [[CaughtWithYourPantsDown poolside scene]] with Creator/JudgeReinhold and Creator/PhoebeCates. It has been almost forgotten that it was based on a novel by Creator/CameronCrowe, which was based on his year undercover at a Southern California high school.