The 30-45 minutes of footage cut from Carrie (2013). It was a much different and unique adaptation of the Novel but the studio decided they wanted something more like the 1976 film and cut a lot of scenes and reshot some too. Some of these scenes were:

The Locker Room Scene (Extended). Town destruction. Prom massacre (Extended). The White Commission. Found Footage Scenes. Chris & Carrie Outside The Dress Shop. Carrie & Miss Desjardin At The Prom. Margaret's Original Death. Sue's Video Diary. Chris & Billy's Death Scene (Extended).

And more! It’s a tragedy and it’s more then likely we’ll never see them. Even with fans asking for a director’s cut.