Next class marks the seventy-fifth Anniversary ofThe Wizard of Oz . To mark the occasion , Warner Bros. and IMAX have partnered to unblock a restored version of the film in 3D , which will black market in IMAX theatre for one week only beginning September 20 . ( The restoration will also be released on dwelling video formats . ) you may see for yourself what go into the restoration in the featurette below .

To pull it off , the artists crop with the original plastic film elements , scan them and removing grease and scratches . Next total the 3-D conversion , which was perform by VFX companyPrime Focus World . Warner Bros. ' digital colorist Janet Wilson then did the color correction in 3D.

Warner Bros. and IMAX — along with member of the conversion team , including Ned Price , VP of Mastering , Warner Bros. Technical Operations , and stereographer Justin Jones — late screened three scenes for extremity of the crush , who say that   the renovation reveals things aboutOzthat you probably could n’t see when watching the movie on TV . " You get a wonderful sense of depth with so much layering ( especially with the multi - plane castling effect),“writes Bill Desowitz at Indiewire . " The detail is stunning ( from the Scarecrow ’s gunny texture to the Cowardly Lion ’s pelt ; from the superfluous rivet on the Tin Man ’s face to Dorothy ’s freckles ) . " Desowitz also notes that it ’s not just color   that delineate Dorothy ’s journey from Kansas to Oz ; Prime Focus kept the three-D in Kansas somewhat shallow , while pumping up the astuteness for Oz . And they also played around with the three-D , strain the Witch ’s nose and exaggerating her hat and fingers to make her scarier , according to Desowitz .

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For more on the photographic film ’s restoration and changeover , head over to Indiewire .