Some movies go through such dramatic changes during production that the finished version barely resembles what filmmakers originally had in mind. Scripts get rewritten, actors are replaced, studios step in, and entire storylines disappear before audiences ever get a chance to see them. In a few cases, the original concept was so different that the movie could have ended up belonging to an entirely different genre. These behind the scenes changes aren’t always obvious when watching the final cut, but once you learn what happened during production, certain movies become much more interesting.Toy Story (1995)Early versions of Woody were much meaner and more sarcastic, and a disastrous test screening of the original footage convinced Pixar to completely rethink his personality and the film’s tone.cnx.cmd.push(function() {cnx({playerId: "106e33c0-3911-473c-b599-b1426db57530",}).render("0270c398a82f44f49c23c16122516796");});Back to the Future (1985)Eric Stoltz originally played Marty McFly and filmed several weeks of scenes before being replaced by Michael J. Fox, forcing the production to reshoot much of the movie.I Am Legend (2007)The theatrical ending turned Neville into a heroic martyr, while the original ending showed him realizing that the infected had their own society and that he had become their monster.Pretty Woman (1990)Originally titled 3,000, the film was a much darker story about addiction and prostitution, with a tragic ending instead of the romantic comedy audiences know.Alien (1979)Ridley Scott originally considered an ending in which the Alien killed Ripley and transmitted a final message using her voice, leaving no human survivor.E.T. the Extra-Terrestrial (1982)Spielberg initially developed the idea as a much darker science fiction film called Night Skies, about hostile extraterrestrials terrorizing a family.The Wizard of Oz (1939)Buddy Ebsen was originally cast as the Tin Man but had to leave after suffering a severe reaction to the aluminum dust used in his makeup, leading Jack Haley to take over.Rogue One: A Star Wars Story (2016)The movie underwent extensive reshoots, with several sequences from the original version disappearing and the third act being substantially reworked before release.World War Z (2013)The original third act featured Gerry Lane fighting through a zombie-infested Russia, but the entire sequence was scrapped and replaced with the quieter laboratory finale.First Blood (1982)The original ending had Rambo dying after asking Colonel Trautman to shoot him, but test audiences reacted so negatively that filmmakers decided to let him survive.Clue (1985)The film originally had three different endings, each revealing a different murderer, and theaters initially showed different versions depending on where audiences watched it.The Amazing Spider-Man 2 (2014)The original plans included a much larger setup for the Sinister Six, with deleted scenes and additional storylines intended to launch an entire series of spin-offs.The Emperor’s New Groove (2000)Originally developed as Kingdom of the Sun, the movie was supposed to be an epic musical inspired by Inca mythology before production problems transformed it into a comedy.Deadpool 2 (2018)The theatrical version kept Vanessa dead for much of the story, but the post-credit sequence allowed Deadpool to travel back in time and save her, changing the emotional outcome.The Bourne Identity (2002)The original ending was reportedly more elaborate, but studio concerns and reshoots led to a different conclusion that better established Jason Bourne’s future as a franchise character.The post 15 Movies That Were Almost Completely Unrecognizable From the Original Concept appeared first on Den of Geek.